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Astronomy MCQ Quiz (with Correct Answers) - Stars and Galaxies

Total questions: 500

Worksheet time: 4hrs 10mins

Name
Class
Date
1.

Which is the closest star system to Earth?

a)

Proxima Centauri

b)

Sirius

c)

Vega

d)

Betelgeuse

2.

What type of galaxy is the Milky Way?

a)

Elliptical

b)

Spiral

c)

Irregular

d)

Lenticular

3.

What is the central region of a spiral galaxy called?

a)

Halo

b)

Bulge

c)

Disk

d)

Arm

4.

Where do stars primarily form?

a)

Nebulae

b)

Quasars

c)

Pulsars

d)

Black holes

5.

Which element primarily fuels main-sequence stars?

a)

Helium

b)

Carbon

c)

Hydrogen

d)

Oxygen

6.

What is the apparent brightness of a star called?

a)

Luminosity

b)

Magnitude

c)

Color index

d)

Temperature

7.

A supernova occurs at the end of what?

a)

Planet's life

b)

Star's life

c)

Galaxy's life

d)

Comet's orbit

8.

The Milky Way is part of which galaxy cluster?

a)

Virgo

b)

Local Group

c)

Fornax

d)

Hercules

9.

Which is the most luminous type of galaxy?

a)

Spiral

b)

Elliptical

c)

Quasar

d)

Irregular

10.

Which force keeps stars in galaxies bound together?

a)

Electromagnetic

b)

Gravitational

c)

Nuclear

d)

Magnetic

11.

The star Sirius is located in which constellation?

a)

Orion

b)

Canis Major

c)

Taurus

d)

Ursa Major

12.

What does the color of a star indicate?

a)

Distance

b)

Composition

c)

Temperature

d)

Size

13.

What is the name of the Milky Way's central black hole?

a)

Andromeda A

b)

Cygnus X-1

c)

Sagittarius A*

d)

M87*

14.

Which galaxy is on a collision course with the Milky Way?

a)

Triangulum

b)

Sombrero

c)

Andromeda

d)

Whirlpool

15.

Which spectral class of star is the hottest?

a)

O

b)

B

c)

A

d)

M

16.

A binary star system contains how many stars?

a)

One

b)

Two

c)

Three

d)

Four

17.

What do astronomers use to measure stellar distances?

a)

Parallax

b)

Spectra

c)

Luminosity

d)

Magnitude

18.

What is the outermost layer of a star's atmosphere called?

a)

Photosphere

b)

Chromosphere

c)

Corona

d)

Core

19.

Red giants are formed when a star exhausts which element?

a)

Iron

b)

Helium

c)

Hydrogen

d)

Carbon

20.

A pulsar is a rapidly spinning form of which object?

a)

Neutron star

b)

White dwarf

c)

Black hole

d)

Red giant

21.

Which of the following is the remnant of a massive star after a supernova explosion?

a)

Neutron star

b)

White dwarf

c)

Protostar

d)

Red giant

22.

The Hertzsprung–Russell diagram plots stars based on what?

a)

Distance & Size

b)

Luminosity & Temperature

c)

Color & Mass

d)

Density & Orbit

23.

What is the typical life span of a massive star?

a)

Billion years

b)

Million years

c)

Thousand years

d)

Hundred years

24.

Which type of galaxy has no defined shape?

a)

Spiral

b)

Elliptical

c)

Irregular

d)

Lenticular

25.

Which part of a spiral galaxy contains the oldest stars?

a)

Arms

b)

Bulge

c)

Disk

d)

Halo

26.

What process powers stars by converting hydrogen to helium?

a)
Fission
b)

Fusion

c)

Ionization

d)

Radiation

27.

What is the term for a star's instrinsic brightness called?

a)

Apparent magnitude

b)

Absolute magnitude

c)

Luminosity

d)

Color index

28.

What is the term for a star's brightness as seen from Earth?

a)

Luminosity

b)

Apparent magnitude

c)

Energy flux

d)

Distance modulus

29.

Which galaxy is the largest in the Local Group?

a)

Milky Way

b)

Andromeda

c)

Triangulum

d)

Pegasus

30.

What type of object is a white dwarf?

a)

Dead star

b)

Protostar

c)

Main sequence

d)

Red giant

31.

What is the typical color of the hottest stars?

a)

Red

b)

Yellow

c)

White

d)

Blue

32.

Which phenomenon causes galaxies to appear redshifted?

a)

Expansion of universe

b)

Contraction of universe

c)

Rotation of galaxy

d)

Reflection from galaxy

33.

Which cluster contains thousands of stars bound by gravity?

a)

Nebula

b)

Open cluster

c)

Globular cluster

d)

Galaxy

34.

What is the approximate number of stars in the Milky Way?

a)

10 million

b)

1 billion

c)

100 billion

d)

1 trillion

35.

What is the term for a young star still gathering mass?

a)

Protostar

b)

Dwarf

c)

Pulsar

d)

Nova

36.

What is the typical temperature of the Sun’s core?

a)

1 million K

b)

10 million K

c)

15 million K

d)

100 million K

37.

What is the explosion of a massive star called?

a)

Nova

b)

Supernova

c)

Flare

d)

Eruption

38.

What is the region around a black hole called from which nothing escapes?

a)

Core

b)

Horizon

c)

Event horizon

d)

Singularity

39.

Which galaxy is known as M31?

a)

Triangulum

b)

Andromeda

c)

Whirlpool

d)

Sombrero

40.

What do Cepheid variables help astronomers measure?

a)

Distance

b)

Temperature

c)

Mass

d)

Velocity

41.

Which law relates a star's brightness to its distance?

a)

Hubble

b)

Kepler

c)

Inverse-square

d)

Wien

42.

Which type of galaxy has a bright central bulge and tightly wound arms?

a)

Barred spiral

b)

Irregular

c)

Elliptical

d)

Lenticular

43.

What is the spiral arm closest to our Solar System called?

a)

Perseus

b)

Sagittarius

c)

Orion

d)

Cygnus

44.

What kind of star will the Sun eventually become?

a)

Neutron star

b)

White dwarf

c)

Black hole

d)

Blue giant

45.

Which galaxies contain mostly older stars and little gas?

a)

Spiral

b)

Elliptical

c)

Irregular

d)

Barred

46.

The galaxy known for having a prominent dust lane and jet is:

a)

Andromeda Galaxy

b)

Sombrero Galaxy

c)

Centaurus A

d)

Whirlpool Galaxy

47.

What is the name of our galactic supercluster?

a)

Virgo

b)

Hercules

c)

Coma

d)

Perseus

48.

What are the two most common elements in stars?

a)

Carbon, Oxygen

b)

Hydrogen, Helium

c)

Iron, Nickel

d)

Nitrogen, Oxygen

49.

What is the center of a spiral galaxy usually dominated by?

a)

Nebula

b)

Star cluster

c)

Black hole

d)

Quasar

50.

What is the approximate age of the Milky Way galaxy?

a)

2 billion yrs

b)

5 billion yrs

c)

10 billion yrs

d)

13 billion yrs

51.

What term describes galaxies with very high energy emissions?

a)
Starburst
b)

Radio

c)

Active

d)

Compact

52.

What is the most energetic type of galaxy nucleus?

a)

Pulsar

b)

Quasar

c)

Seyfert

d)

Blazar

53.

What is the approximate distance to the Andromeda Galaxy?

a)

1 kpc

b)

500 kpc

c)

780 kpc

d)

1 Mpc

54.

Which element marks the end of fusion in massive stars?

a)

Nickel

b)

Carbon

c)

Iron

d)

Neon

55.

Which part of a star transports energy by radiation?

a)

Core

b)

Radiative zone

c)

Convection zone

d)

Corona

56.

What is the temperature of the Sun's photosphere?

a)

2,000 K

b)

5,800 K

c)

10,000 K

d)

20,000 K

57.

What is the luminous core of an active galaxy called?

a)

Bulge

b)

AGN

c)

Halo

d)

Nucleus

58.

What is the lifespan of high-mass stars compared to low-mass stars?

a)

Longer

b)

Shorter

c)

Equal

d)

Variable

59.

What is the fate of a star with less than 8 solar masses?

a)

Neutron star

b)

Black hole

c)

White dwarf

d)

Pulsar

60.

What is the approximate surface temperature of blue stars?

a)

3,000 K

b)

6,000 K

c)

10,000 K

d)

25,000 K

61.

What is the Chandrasekhar limit approximately equal to?

a)

1 M☉

b)

1.4 M☉

c)

2 M☉

d)

8 M☉

62.

What is the approximate age of the oldest globular clusters?

a)

5 Gyr

b)

8 Gyr

c)

12 Gyr

d)

18 Gyr

63.

Which population stars are metal-poor?

a)

Population I

b)

Population II

c)

Population III

d)

Mixed

64.

What phenomenon shifts spectral lines toward longer wavelengths?

a)

Blue shift

b)

Redshift

c)

Absorption

d)

Reflection

65.

What is the central bulge of the Milky Way mostly composed of?

a)

Gas

b)

Young stars

c)

Old stars

d)

Dust

66.

Which satellite galaxy is nearest to the Milky Way?

a)

M31

b)

M33

c)

SMC

d)

LMC

67.

What is the approximate mass of the Milky Way’s central black hole?

a)

10⁴ M☉

b)

10⁶ M☉

c)

10⁸ M☉

d)

10¹⁰ M☉

68.

Which law relates a star’s flux to its apparent brightness and distance?

a)

Kepler

b)

Stefan-Boltzmann

c)

Inverse-square

d)

Wien

69.

What region of an HR diagram contains red giants?

a)

Top left

b)

Bottom left

c)

Top right

d)

Bottom right

70.

What is the typical orbital period of stars near the Galactic center?

a)

1 Myr

b)

10 Myr

c)

100 Myr

d)

1 Gyr

71.

Which galaxy component contains Population I stars?

a)

Halo

b)

Bulge

c)

Disk

d)

Cluster

72.

Seyfert galaxies are distinguished from normal spirals by:

a)

their extremely bright and active nuclei

b)

their larger spiral arms

c)

their lack of a central bulge

d)

their absence of interstellar gas

73.

What term describes a neutron star emitting periodic gamma-ray bursts?

a)

X-ray binary

b)

Magnetar

c)

Radio pulsar

d)

Microquasar

74.

Which AGN type is viewed nearly face-on?

a)

Seyfert I

b)

Seyfert II

c)

Blazar

d)

Quasar

75.

Quasars are found at what typical redshift range?

a)

z < 0.1

b)

z ≈ 0.5

c)

z > 1

d)

z ≈ 0

76.

Which object can evolve into a pulsar after a supernova?

a)

Red giant

b)

White dwarf

c)

Neutron star

d)

Black hole

77.

What is the magnetic field strength of typical pulsars?

a)

10310^3 G

b)

10610^6 G

c)

101210^{12} G

d)

101510^{15} G

78.

Pulsars were first discovered using which wavelength?

a)

Optical

b)

Infrared

c)

Radio

d)

X-ray

79.

What is the typical radius of a neutron star?

a)

1 km

b)

10 km

c)

100 km

d)

1000 km

80.

What is the closest star to Earth?

a)

Sun

b)

Sirius

c)

Vega

d)

Proxima

81.

What is the color of the Sun?

a)

White

b)

Yellow

c)

Orange

d)

Blue

82.

What is a group of stars forming a pattern called?

a)

Cluster

b)

Constellation

c)

Galaxy

d)

Comet

83.

What do we call a huge collection of stars and dust?

a)

Nebula

b)

Cluster

c)

Galaxy

d)

Comet

84.

What is the Sun’s surface temperature approximately?

a)

3000 K

b)

5800 K

c)

10,000 K

d)

15,000 K

85.

What is the Milky Way’s approximate diameter?

a)

10,000 ly

b)

50,000 ly

c)

100,000 ly

d)

1 million ly

86.

What is the name for a system of two stars orbiting each other?

a)

Globuler cluster

b)

Binary Stars

c)

Variable stars

d)

open cluster

87.

Which is the brightest star in the night sky?

a)

Sirius

b)

Vega

c)

Betelgeuse

88.

Which star is known as the “Dog Star”?

a)

Vega

b)

Sirius

c)

Procyon

d)

Rigel

89.

What is the nearest known star system to Earth?

a)

Alpha Centauri

b)

Procyon

c)

Betelgeuse

d)

Rigel

90.

What does the Hertzsprung–Russell diagram compare?

a)

Mass vs Density

b)

Temperature vs Luminosity

c)

Radius vs Age

d)

Gravity vs Heat

91.

What are galaxies grouped together in vast collections called?

a)

Clusters

b)

Groups

c)

Superclusters

d)

Clouds

92.

What is a binary system where one star steals material from the other called?

a)

Contact binary

b)

Eclipsing binary

c)

X-ray binary

d)

Twin binary

93.

What type of binary star can be detected through light changes?

a)

Visual

b)

Spectroscopic

c)

Eclipsing

d)

Gravitational

94.

What is the visible jet in an AGN composed of?

a)

Gas

b)

Plasma

c)

Dust

d)

Rocks

95.

What defines the Chandrasekhar limit?

a)

Star radius

b)

Max neutron mass

c)

Max white dwarf mass

d)

Fusion rate

96.

What is the remnant of a Type II supernova?

a)

Black hole

b)

Neutron star

c)

White dwarf

d)

Both A & B

97.

What is the outer boundary of a black hole called?

a)

Core

b)

Singularity

c)

Event horizon

d)

Accretion disk

98.

What is the center point of a black hole called?

a)
singularity
b)
gravitational pull
c)
black matter
d)
event horizon
99.

What does “metallicity” of a star measure?

a)

Magnetic field

b)

Rotation

c)

Heavy element content

d)

Temperature

100.

Which stars are most metal-rich?

a)

Old Population II

b)

Young Population I

c)

Globular

d)

Halo

101.

What is the Milky Way’s rotation period around its center?

a)

10 Myr

b)

100 Myr

c)

225 Myr

d)

1 Gyr

102.

What is the primary tool used to classify galaxies?

a)

Spectrum

b)

Shape

c)

Mass

d)

Color

103.

What cluster is the Andromeda Galaxy part of?

a)

Virgo

b)

Coma

c)

Local Group

d)

Sculptor

104.

What are galaxies undergoing intense star formation called?

a)

Quasars

b)

Starburst

c)

Seyfert

d)

Radio

105.

What are galaxies undergoing intense star formation called?

a)

Quasars

b)

Starburst

c)

Seyfert

d)

Radio

106.

What is the shape of elliptical galaxies based on?

a)

Color

b)

Luminosity

c)

Eccentricity

d)

Size

107.

What is the estimated age of the oldest galaxies?

a)

5 Gyr

b)

8 Gyr

c)

12 Gyr

d)

15 Gyr

108.

What fraction of the universe’s mass is in galaxies?

a)

1%

b)

10%

c)

25%

d)

50%

109.

What is the approximate orbital period of the Sun around the Milky Way’s center?

a)

2 million years

b)

25 million years

c)

230 million years

d)

1 billion years

110.

What happens at the event horizon of a black hole?

a)

Light escapes slowly

b)

Gravity becomes zero

c)

Escape velocity equals light speed

d)

Space stops expanding

111.

What component dominates the total mass of a typical galaxy?

a)

Stars

b)

Gas

c)

Dust

d)

Dark matter

112.

Which stage marks the end of nuclear fusion in a massive star before it explodes as a supernova?

a)

Red giant

b)

Helium flash

c)

Iron core formation

d)

White dwarf phase

113.

Which planet is known as the Red Planet?

a)

Mercury

b)

Mars

c)

Venus

d)

Jupiter

114.

Which is the largest planet in our solar system?

a)

Earth

b)

Saturn

c)

Jupiter

d)

Neptune

115.

What is the closest planet to the Sun?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

116.

Which planet is known for its beautiful rings?

a)

Uranus

b)

Saturn

c)

Neptune

d)

Jupiter

117.

Which planet is known as the Blue Planet?

a)

Earth

b)

Uranus

c)

Neptune

d)

Venus

118.

Which planet is farthest from the Sun?

a)

Neptune

b)

Saturn

c)

Uranus

d)

Jupiter

119.

Which planet has the most moons?

a)

Jupiter

b)

Saturn

c)

Earth

d)

Mercury

120.

Which planet is called the Morning Star or Evening Star?

a)

Venus

b)

Mars

c)

Mercury

d)

Neptune

121.

Which planet takes the shortest time to orbit the Sun?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

122.

Which planet is famous for its Great Red Spot?

a)

Saturn

b)

Jupiter

c)

Neptune

d)

Mars

123.

How many planets are in our Solar System?

a)

7

b)

8

c)

9

d)

10

124.

Which planet is known for having a tilted axis?

a)

Earth

b)

Uranus

c)

Venus

d)

Mars

125.

What is the name of our galaxy?

a)

Milky Way

b)

Andromeda

c)

Whirlpool

d)

Sombrero

126.

What are the rings around Saturn made of?

a)

Gas

b)

Ice and Rock

c)

Fire

d)

Sand

127.

What do astronauts wear in space?

a)

Diving Suit

b)

Pressure Suit

c)

Space Suit

d)

Jet Suit

128.

What are the two primary components of most nebulae?

a)

Carbon and Iron

b)

Hydrogen and gas dust

c)

Oxygen and nitrogen

d)

Water vapour and Helium

129.

What force dominates the process of star formation, causing gas and dust clouds to collapse?

a)

Electromagnetism

b)

Strong Nuclear Force

c)

Gravity

d)

Weak Nuclear Force

130.

Which stellar event signals the explosive death of a massive star?

a)

Supernova

b)

Nova

c)

White dwarf

d)

Red giant expansion

131.

Which open cluster which is famously called as the 7 sisters which is the prominent feature of Taurus constellation?

a)

Orion nebulae

b)

Pleiades

c)

Beehive cluster

d)

Horsehead nebulae

132.

What is the apparent path in the sky called?

a)

Celestial equator

b)

ecliptic

c)

Tropic of cancer

d)

Pole

133.

Milky way is classified as which type of galaxy?

a)

Irregular

b)

barred spiral

c)

Spherical

d)

lenticular

134.

What is the name of Perseus's horse?

a)

Argo

b)

Chestnut

c)

Tron

d)

Pegasus

135.

What is the relationship between Andromeda & Perseus in Mythology?

a)

Dad & Mom

b)

Brother & Sister

c)

Father & daughter

d)

Mother & Son

136.

Brightest star of constellation Orion?

a)

Rigel

b)

Sirius

c)

Betelguese

d)

Bellatrix

137.

How many moons does Saturn has?

a)

243

b)

154

c)

78

d)

68

138.

How many zodiac signs do we have?

a)

4

b)

8

c)

24

d)

36

139.

Pollux and castor are stars of which constellation?

a)

Gemini

b)

Cancer

c)

Centaurus

d)

Auriga

140.

Orion's belt is made up of how many major stars?

a)

1

b)

3

c)

12

d)

15

141.

How many constellation do we have?

a)

8

b)

88

c)

888

d)

18

142.

Big dipper is a part of which constellation?

a)

Ursa major

b)

Ursa minor

c)

Orion

d)

Scorpio

143.

Which is the smallest constellation?

a)

Crux

b)

cassiopia

c)

Orion

d)

Hydra

144.

which is the longest constellation?

a)

Crux

b)

cassiopia

c)

Orion

d)

Hydra

145.

What are artificial objects orbiting Earth called?

a)

Planets

b)

Satellites

c)

Stars

d)

Asteroids

146.

What causes a lunar eclipse?

a)

Earth's shadow on the Moon

b)

Moon’s shadow on Earth

c)

Sun’s shadow

d)

Star alignment

147.

What is the large cloud-like appearance seen in the Milky Way sky?

a)

Nebula

b)

Star cluster

c)

Galaxy arm

d)

Comet tail

148.

What is the name of a star system with more than two stars?

a)

Binary

b)

Multiple star system

c)

Constellation

d)

Cluster

149.

Which ancient civilization named many constellations we use today?

a)

Egyptians

b)

Romans

c)

Greeks

d)

Chinese

150.

What are artificial objects orbiting Earth called?

a)

Planets

b)

Satellites

c)

Stars

d)

Asteroids

151.

What is the large cloud-like appearance seen in the Milky Way sky?

a)

Nebula

b)

Star cluster

c)

Galaxy arm

d)

Comet tail

152.

Which constellation has a shape of a scorpion?

a)

Scorpio

b)

Orion

c)

Leo

d)

Virgo

153.

Which object can you sometimes see during both day and night?

a)

Venus

b)

Mars

c)

Jupiter

d)

Neptune

154.

Which constellation represents twins?

a)

Gemini

b)

Leo

c)

Scorpio

d)

Pisces

155.

Which constellation represents a lion?

a)

Leo

b)

Orion

c)

Taurus

d)

Pegasus

156.

What are meteors called after they hit the Earth?

a)

Asteroids

b)

Meteorites

c)

Comets

d)

Stars

157.

Which direction should you look to find Polaris?

a)

East

b)

West

c)

North

d)

South

158.

What is the study of stars and space called?

a)

Biology

b)

Astronomy

c)

Geography

d)

Geology

159.

What is the apparent path of the Sun across the sky called?

a)

Orbit

b)

Ecliptic

c)

Axis

d)

Equator

160.

Which constellation is known as the Little Bear?

a)

Ursa Major

b)

Ursa Minor

c)

Draco

d)

Pegasus

161.

What are the small points of light we see in the night sky?

a)

Planets

b)

Stars

c)

Comets

d)

Satellites

162.

What instrument helps us view stars more clearly?

a)

Periscope

b)

Telescope

c)

Binoculars

d)

Spectroscope

163.

Which constellation looks like a W in the sky?

a)

Orion

b)

Cassiopeia

c)

Leo

d)

Pegasus

164.

What is a comet’s tail made of?

a)

Rock

b)

Ice and dust

c)

Gas and plasma

d)

Fire

165.

How many main phases does the Moon have?

a)

2

b)

4

c)

6

d)

8

166.

What causes the Moon to shine?

a)

Its own light

b)

Reflected sunlight

c)

Stars’ light

d)

Lightning

167.

Which phase of the Moon appears fully lit?

a)

New Moon

b)

Crescent Moon

c)

Full Moon

d)

Half Moon

168.

What do we call the dark patches seen on the Moon?

a)

Shadows

b)

Craters

c)

Mountains

d)

Rivers

169.

Which object lights up the night sky most brightly?

a)

Stars

b)

Moon

c)

Planets

d)

Comets

170.

What is a constellation shaped like a big spoon called?

a)

Orion

b)

Big Dipper

c)

Cassiopeia

d)

Crux

171.

What is the name of the star that rises in the east and sets in the west?

a)

The Sun

b)

Sirius

c)

Polaris

d)

Rigel

172.

What time of day can you see most stars?

a)

Morning

b)

Afternoon

c)

Night

d)

Evening

173.

What type of object is the Moon?

a)

Planet

b)

Star

c)

Natural Satellite

d)

Asteroid

174.

What do astronomers use to study distant stars and galaxies?

a)

Binoculars

b)

Telescopes

c)

Microscopes

d)

Satellites

175.

Which constellation contains the Big Dipper?

a)

Ursa Minor

b)

Ursa Major

c)

Orion

d)

Draco

176.

Which constellation is known as the Hunter?

a)

Orion

b)

Ursa Major

c)

Cassiopeia

d)

Leo

177.

What is the center of our Solar System?

a)

Earth

b)

The Sun

c)

Blackhole

d)

Moon

178.

Which planet has one large moon called Titan?

a)

Mars

b)

Saturn

c)

Neptune

d)

Jupiter

179.

Which planet has the shortest day?

a)

Earth

b)

Jupiter

c)

Mars

d)

Venus

180.

What is the name of Earth's moon?

a)

Luna

b)

Selene

c)

Apollo

d)

Deimos

181.

Which planet has a day longer than its year?

a)

Venus

b)

Mercury

c)

Mars

d)

Earth

182.

Which planet was demoted from planet status in 2006?

a)

Ceres

b)

Pluto

c)

Eris

d)

Haumea

183.

What are comets mostly made of?

a)

Rock and dust

b)

Ice and dust

c)

Gas

d)

Metal

184.

What force keeps the planets in orbit around the Sun?

a)

Magnetism

b)

Friction

c)

Wind

d)

Gravity

185.

Which planet has blue color due to methane gas?

a)

Venus

b)

Uranus

c)

Earth

d)

Mercury

186.

What is the Sun mainly made of?

a)

Iron

b)

Hydrogen and Helium

c)

Oxygen

d)

Carbon

187.

Which planet has a surface temperature hot enough to melt lead?

a)

Venus

b)

Mercury

c)

Mars

d)

Earth

188.

Which planet rotates in the opposite direction to most others?

a)

Venus

b)

Mars

c)

Jupiter

d)

Earth

189.

Which planet’s moon is called Phobos?

a)

Jupiter

b)

Mars

c)

Neptune

d)

Earth

190.

Which spacecraft was the first to land on the Moon?

a)

Apollo 11

b)

Voyager 1

c)

Chandrayaan-2

d)

Sputnik 1

191.

What is the largest moon in the Solar System?

a)

Europa

b)

Titan

c)

Ganymede

d)

Callisto

192.

What is the only planet where life is known to exist?

a)

Mars

b)

Venus

c)

Earth

d)

Jupiter

193.

Which planet is known for its strong winds and storms?

a)

Jupiter

b)

Neptune

c)

Mars

d)

Venus

194.

Which is the brightest object in the night sky after the Moon?

a)

Venus

b)

Mars

c)

Jupiter

d)

Sirius

195.

What protects Earth from harmful solar radiation?

a)

Mountains

b)

Magnetic Field

c)

Atmosphere

d)

Ozone Layer

196.

What planet has a moon called Triton?

a)

Mars

b)

Neptune

c)

Saturn

d)

Jupiter

197.

Which is the second smallest planet?

a)

Mars

b)

Mercury

c)

Venus

d)

Neptune

198.

How long does Earth take to orbit the Sun?

a)

24 hours

b)

30 days

c)

365 days

d)

12 hours

199.

Which planet is known as the gas giant?

a)

Mercury

b)

Earth

c)

Jupiter

d)

Venus

200.

What is the name of NASA’s Mars rover launched in 2020?

a)

Curiosity

b)

Perseverance

c)

Opportunity

d)

Spirit

201.

What is the name of the first artificial satellite?

a)

Sputnik 1

b)

Apollo 11

c)

Voyager 1

d)

Chandrayaan-1

202.

Which planet has the slowest rotation?

a)

Venus

b)

Earth

c)

Jupiter

d)

Neptune

203.

Which planet has polar ice caps made of carbon dioxide?

a)

Mars

b)

Earth

c)

Neptune

d)

Venus

204.

Which planet is nicknamed the “Morning Star”?

a)

Venus

b)

Jupiter

c)

Saturn

d)

Mercury

205.

What is the average distance from Earth to the Sun?

a)

93 million miles

b)

39 million miles

c)

150 million km

d)

300 million km

206.

What is the average distance between Sun to the Earth?

a)

93 million miles

b)

39 million miles

c)

150 million km

d)

300 million km

207.

Which planet is closest in size to Earth?

a)

Venus

b)

Mars

c)

Mercury

d)

Uranus

208.

Which planet is closest in size to Earth?

a)

Jupiter

b)

Neptune

c)

Uranus

d)

Saturn

209.

Which planet has a storm called the Great Dark Spot?

a)

Jupiter

b)

Neptune

c)

Uranus

d)

Saturn

210.

Which planet has the highest mountain, Olympus Mons?

a)

Mars

b)

Venus

c)

Mercury

d)

Earth

211.

Which planet has a year longer than 80 Earth years?

a)

Uranus

b)

Jupiter

c)

Saturn

d)

Neptune

212.

Which spacecraft explored all the outer planets?

a)

Voyager 2

b)

Cassini

c)

Pioneer 10

d)

New Horizons

213.

What are asteroids made up of?

a)

Kerosine

b)

Rocks

c)

wood

d)

fire

214.

Where is asteroid belt located?

a)

Between Mars & Jupiter

b)

Between Sun and Mercury

c)

Between Jupiter & Saturn

d)

Beyond Neptune

215.

Where is kuiper belt located?

a)

Between Mars & Jupiter

b)

Between Sun and Mercury

c)

Between Jupiter & Saturn

d)

Beyond Neptune

216.

What do we call the group of stars that form patterns in the sky?

a)

Constellations

b)

Planets

c)

Asteroids

d)

Comets

217.

Which is the brightest star in the night sky?

a)

Polaris

b)

Sirius

c)

Betelgeuse

d)

Rigel

218.

What is the name of our galaxy?

a)

Whirlpool

b)

Andromeda

c)

Milky Way

d)

Sombrero

219.

Which star is also known as the North Star?

a)

Sirius

b)

Vega

c)

Polaris

d)

Aldebaran

220.

What causes stars to appear to twinkle?

a)

Earth’s atmosphere

b)

Clouds

c)

Their movement

d)

Their brightness

221.

What is a shooting star actually?

a)

A falling star

b)

A meteor

c)

A comet

d)

A satellite

222.

Which planet is often visible as a bright object in the night sky?

a)

Mars

b)

Venus

c)

Jupiter

d)

All of these

223.

What is the name of India’s human spaceflight program?

a)

Gaganyaan

b)

Chandrayaan

c)

Mangalyaan

d)

Shukrayaan

224.

Which spaceport does ISRO use for most launches?

a)

Sriharikota

b)

Thumba

c)

Ahmedabad

d)

Pune

225.

Who is known as India’s Rocket Man?

a)

A.P.J. Abdul Kalam

b)

Rakesh Sharma

c)

K Sivan

d)

Satish Dhawan

226.

What does ISRO’s logo represent?

a)

A rocket and orbit

b)

A planet and satellite

c)

A map of India

d)

A Star

227.

What does the name of the rover, Pragyan, mean in Sanskrit?

a)

Courage

b)

Wisdom

c)

Moon

d)

Star

228.

The Vikram lander of Chandrayaan-2 was named after whom?

a)

Dr. A.P.J. Abdul Kalam

b)

Dr. Vikram Sarabhai

c)

Satish Dhawan

d)

S. Somanath

229.

India became the first Asian country to successfully place a spacecraft in orbit around which planet?

a)

Venus

b)

Mars

c)

Saturn

d)

Jupiter

230.

What does the word 'Aditya' mean in Sanskrit/Hindi?

a)

Moon

b)

Planet

c)

Sun

d)

Star

231.

What is the short name for India's regional satellite navigation system?

a)

GPS

b)

GAGAN

c)

NavIC

d)

IRNSS

232.

"Which ISRO rocket is known as the ""workhorse"" because it is very reliable?"

a)

GSLV

b)

PSLV

c)

SSLV

d)

SLV 3

233.

Who proposed the heliocentric theory before Copernicus?

a)

Bhaskara I

b)

Aryabhata

c)

Brahmagupta

d)

Varahamihira

234.

What is the significance of Thumba’s location?

a)

Near the equator

b)

Near the magnetic equator

c)

Near the tropic

d)

Near the prime meridian

235.

Which ISRO center is responsible for satellite design and assembly?

a)

VSSC

b)

URSC

c)

SDSC

d)

ISTRAC

236.

Which country helped train Indian astronauts for Gaganyaan?

a)

USA

b)

France

c)

Russia

d)

Japan

237.

Where is the Vikram Sarabhai Space Centre located?

a)

Hyderabad

b)

Chennai

c)

Thiruvananthapuram

d)

Bengaluru

238.

INSAT satellites are mainly used for:

a)

Navigation

b)

Communication & meteorology

c)

Space research

d)

GPS tracking

239.

Which rocket was India’s first launch vehicle?

a)

SLV 3

b)

ASLV

c)

 PSLV

d)

 GSLV

240.

Which rocket was India’s first launch vehicle?

a)

SLV 3

b)

ASLV

c)

PSLV

d)

GSLV

241.

Which Indian-origin astronaut has spent over 320 days in space?

a)

Kalpana Chawla

b)

Sunita Williams

c)

Rakesh Sharma

d)

Sirisha Bandla

242.

Which ISRO mission studies the Sun using coronagraphs?

a)

Aditya-L1

b)

Astrosat

c)

Mangalyaan

d)

Chandrayaan-3

243.

Which joint ISRO–NASA mission aims to study Earth’s surface changes?

a)

Chandrayaan-3

b)

NISAR

c)

Shukrayaan

d)

Astrosat-2

244.

Which Indian mission will study Venus?

a)

Shukrayaan-1

b)

Mangalyaan-2

c)

Surya-1

d)

Chandrayaan-3

245.

What was the first satellite built entirely in India?

a)

APPLE

b)

Aryabhata

c)

Bhaskara-I

d)

INSAT-1A

246.

Who developed the SLV-3 project for India?

a)

A.P.J. Abdul Kalam

b)

Vikram Sarabhai

c)

K. Sivan

d)

S somnath

247.

Which ISRO mission demonstrated orbit insertion on first attempt?

a)

Mangalyaan

b)

chandryaan 1

c)

Astrosat

d)

Aditya L1

248.

What is the Hindi/Sanskrit meaning of the name Chandrayaan?

a)

Mars Craft

b)

Planet craft

c)

Moon craft

d)

Star craft

249.

What was Rakesh Sharma's famous response when then-Prime Minister Indira Gandhi asked how India looked from space?

a)

"We are all one."

b)

"Saare Jahan Se Achha." (Better than the whole world)

c)

"Truly incredible."

d)

"Small but vibrant."

250.

The landing point of the Chandrayaan-3 lander was officially named what?

a)

Jawahar Point

b)

Shiva Shakti Point

c)

Tiranga Point

d)

Purnima Point

251.

What does the acronym MOM stand for in the context of the Mars mission?

a)

Main Orbiter Module

b)

Mars Orbiter Mission

c)

Mission on Mars

d)

Martian Observation Module

252.

The Chandrayaan program is focused on the exploration of which celestial body?

a)

Moon

b)

Mars Orbiter Mission

c)

Phobos

d)

Comet

253.

What is the name of the liquid fuel engine developed by ISRO, which powers the second stage of PSLV and the four strap-ons of the GSLV Mk II?

a)

NERV

b)

Prithvi Engine

c)

Vikas Engine

d)

Scramjet Engine

254.

Which ancient Indian mathematician/astronomer derived the value of pi by approximating the circumference of a circle?

a)

Brahmagupta

b)

Varahamihira

c)

Aryabhata

d)

Bhaskara II

255.

What does the term Rasi in ancient Indian astronomy refer to?

a)

Planet 

b)

Zodiac signs

c)

Constellations

d)

Stars

256.

The Hindu calendar (Panchanga) is primarily based on the movements of which two celestial bodies?

a)

Sun and Mars

b)

Sun and Moon

c)

Jupiter and Venus

d)

Mercury and Saturn

257.

Aryabhata's theory that the Earth rotates on its axis was largely neglected until its re-emergence in the 16th century, primarily because it contradicted whose established geocentric model?

a)

Kepler

b)

Ptolemy

c)

Copernicus

d)

Archimedes

258.

The movement of the Earth on its axis, as described by Aryabhata, is referred to as what type of motion?

a)

Translational

b)

Orbital

c)

Rotational

d)

Precessional

259.

The Jantar Mantar observatories, built by Maharaja Jai Singh II, are primarily examples of what kind of astronomy?

a)

Telescopic

b)

Astrophotography

c)

Naked-eye (using monumental instruments)

d)

Digital

260.

Which astronomical theory, often attributed to Copernicus much later, did Aryabhata hint at in his work?

a)

Heliocentric theory

b)

Gravitational theory

c)

Big Bang theory

d)

Theory of Relativity

261.

Aryabhata was the first Indian astronomer to provide a scientific explanation for which celestial events, contradicting mythological beliefs?

a)

Planetary Transits

b)

The change of seasons

c)

Solar and Lunar Eclipses

d)

Meteor Showers

262.

What is the main objective of the Gaganyaan mission?

a)

To launch India's first reusable rocket

b)

To send an Indian crew to space (human spaceflight)

c)

To set up a space station

d)

To orbit a deep space asteroid

263.

What does the 'L' in Aditya-L1 stand for?

a)

Light

b)

Launch

c)

Lagrange point

d)

Life

264.

Which ISRO commercial arm manages the launches of foreign satellites and sale of ISRO's technology?

a)

URSC

b)

Antrix Corporation / NSIL

c)

VSSC

d)

SAC

265.

Which Indian satellite is designed for military communication purposes?

a)

Cartosat-2B

b)

RISAT

c)

GSAT-7A (Rukmini)

d)

EDUSAT

266.

India became the first country in the world to reach Mars orbit on its first attempt, in which year?

a)

2013

b)

2014

c)

2008

d)

1998

267.

The first Indian to travel in space, Rakesh Sharma, flew on which spacecraft?

a)

Apollo-11

b)

Salyut 7

c)

Soyuz T-11

d)

progress 1

268.

Which country's space agency is collaborating with ISRO for the Gaganyaan mission for crew training and technical support?

a)

NASA

b)

JAXA

c)

ESA

d)

ROSCOSMOS

269.

What is the name of the half-humanoid robot (female robot) that ISRO will send in the uncrewed Gaganyaan mission?

a)

AstroDidi

b)

GaganDoot

c)

Vyommitra

d)

Antriksha

270.

What does the 'RH' in Indian sounding rockets (e.g., RH-75) stand for?

a)

Research Homing

b)

Rocket Head

c)

Rohini

d)

Remote Handler

271.

Who was the second Chairman of ISRO, succeeding Vikram Sarabhai, and the person after whom the launch center in Sriharikota is named?

a)

U R Rao,

b)

K Kasturirangan

c)

Satish Dhawan

d)

G Madhavan Nair

272.

Aryabhata was launched with the help of which country?

a)

Russia

b)

Japan

c)

ISRO

d)

Soviet union

273.

How many stages does the Polar Satellite Launch Vehicle (PSLV) typically have?

a)

2

b)

3

c)

4

d)

5

274.

What is the name of India's first dedicated multi-wavelength space observatory, launched in 2015?

a)

INSAT

b)

Aryabhatta

c)

Cassini

d)

Astrosat

275.

Who was the first Indian to go into ISS?

a)

Shubhanshu Shukla

b)

Rakesh sharma

c)

Sunita williams

d)

APJ Abdul kalam

276.

India became the _______ country to successfully land a spacecraft on the moon.

a)
first
b)
third
c)
second
d)
fourth
277.

Chandrayaan-3 was launched from which location in India?

a)
Vikram Sarabhai Space Centre, Thiruvananthapuram
b)
ISRO Propulsion Complex, Tamil Nadu
c)
Bangalore Space Research Centre, Karnataka
d)
Satish Dhawan Space Centre, Sriharikota
278.

What is the name of the Chandrayaan-3 rover?

a)

Pragyan

b)

Vikram

c)

Dhruv

d)

Riya

279.

What was the primary objective of the Chandrayaan-3 mission?

a)

To orbit the moon and study its atmosphere

b)

To search for water ice on the lunar surface

c)

To demonstrate a soft landing on the moon and operate a rover

d)

To establish a lunar base for future human missions

280.

which is the first satellite launched in indian launch site

a)
PSLV
b)
Aryabhata
c)
Mangalyaan
d)
Chandrayaan
281.

Which launch vehicle is used for heavier payloads, like Chandrayaan missions?

a)

GSLV Mk3

b)

GSLV Mk2

c)

LVM3

d)

Geosynchronous Satellite Launch Vehicle

282.

What does GSLV stand for?

a)

Geography Satellite Launch Vehicle

b)

Geosynchronous State Launch Vehicle

c)

Geosynchronous Satellite Launch Vehicle

d)

Geosynchronous Satellite Launch Varient

283.

ISRO had set a world record by launching how many satellites in a single mission?

a)

85

b)

26

c)

104

d)

226

284.

In which point is Aditya-L1 located?

a)

L1

b)

L2

c)

L3

d)

L4

285.

which mission successfully landed a rover on the lunar south pole?

a)

Chandrayaan-1

b)

Chandrayaan-2

c)

Chandrayaan-3

d)

James webb

286.

What is "Nakshatra"?

a)

Planet 

b)

Star

c)

Nebulae

d)

Asteroid

287.

Which Indian observatory is located in Nainital?

a)

ARIES

b)

GMRT

c)

IUCAA

d)

Vainu Bappu Observatory

288.

Which ancient Indian text deals with planetary motions?

a)

Surya Siddhanta

b)

Rigveda

c)

Ramayana

289.

What is the basis of time measurement in Indian astronomy?

a)

Planetary motion

b)

Motion of the moon

c)

Motion of the Sun

d)

Motion of comets

290.

What does 'Panchanga' help with?

a)

milkyway

b)

5 stars

c)

Gravity

d)

Time calculations

291.

The GMRT in Pune observes —

a)

Visible Light

b)

Radio Waves

c)

X-rays

292.

Bhinamala is knows as a birth place of the famous astronomer

a)

Aryabhatta

b)

Bhaskara

c)

Bramhagupta

d)

Varahamihira

293.

Which of the following is considered as the first surviving Indian text containing a systematic discussion of astronomical instruments?

a)

Aryabhatiya

b)

Surya siddhanta

c)

bramhasputasiddhanta

d)

Khandakadyaka

294.

Which ancient civilization named many constellations we use today?

a)

Romans

b)

Egyptians

c)

Greeks

d)

Chinese

295.

Which is the largest Indian telescope?

a)

Devasthal Optical Telescope

b)

hubble telescope

c)

Giant Metrewave Radio Telescope

d)

Vainu bappu observatory

296.

Which ancient civilization named many constellations we use today?

a)

Romans

b)

Egyptians

c)

Greeks

d)

Chinese

297.

Which is the largest Indian telescope?

a)

Devasthal Optical Telescope

b)

hubble telescope

c)

Giant Metrewave Radio Telescope

d)

Vainu bappu observatory

298.

Who is the leader of Chandrayaan-1?

a)

Dr. Manmohan singh

b)

APJ Abdul kalam

c)

S. Somnath

d)

Sr. V. Narayanan

299.

What is the Chandrasekhar limit and its relevance in astrophysics?*

a)

The maximum mass a white dwarf star can have before collapsing into a black hole

b)

The distance a star can travel before becoming a supernova

c)

The speed a spacecraft must reach to escape Earth's gravity

d)

The minimum temperature required for nuclear fusion in a star

300.

When was the first Indian satellite launched?

a)
April 19, 1975
b)
July 4, 1978
c)
January 1, 1972
d)
March 15, 1980
301.

Which ISRO rocket is specifically designed for launching small satellites?

a)

PSLV

b)

GSLV

c)

SSLV

d)

SLV-3

302.

Where is ISRO’s headquarters located?

a)

Delhi

b)

Bengaluru

c)

Mumbai

d)

Ahmedabad

303.

Who is the current chairman of ISRO?

a)

K. Sivan

b)

S. Somnath

c)

G. Madhavan Nair

d)

Sr. V. Narayanan

304.

When did India successfully launch its first lunar mission, Chandrayaan-1?

a)

2003

b)

2008

c)

2013

d)

2019

305.

Which is the first Indian satellite?

a)

INSAT-1A

b)

Aryabhata

c)

Bhaskara-I

d)

Kalpana-1

306.

Who is known as the ‘Father of the Indian Space Program’?

a)

Dr. A.P.J. Abdul Kalam

b)

Dr. Vikram Sarabhai

c)

Dr. Homi Bhabha

d)

Rakesh Sharma

307.

Which Indian satellite was named after a famous mathematician?

a)

Aryabhata

b)

INSAT

c)

INSAT

d)

Bhaskara

308.

Which was the first Indian to travel to space?

a)

Kalpana Chawla

b)

Sunita Williams

c)

Rakesh Sharma

d)

Vikram Sarabhai

309.

Which Indian rocket is called the ‘Workhorse of ISRO’?

a)

GSLV Mk III

b)

PSLV

c)

ASLV

d)

SLV

310.

Which Indian satellite was launched for weather forecasting?

a)

Bhaskara

b)

INSAT

c)

Aryabhata

d)

Rohini

311.

What is the name of India’s space agency?

a)

NASA

b)

ISRO

c)

ESA

d)

DRDO

312.

Who was the first Indian woman in space?

a)

Sunita Williams

b)

Kalpana Chawla

c)

Indira Gandhi

d)

Tessy Thomas

313.

Which spacecraft studies the Moon?

a)

Mars Orbiter Mission

b)

Chandrayaan

c)

Aditya-L1

d)

Astrosat

314.

Which Indian satellite was launched for weather forecasting?

a)

Bhaskara

b)

INSAT

c)

Aryabhata

d)

Rohini

315.

What is the name of India’s space agency?

a)

NASA

b)

ISRO

c)

ESA

d)

DRDO

316.

Which spacecraft studies the Moon?

a)

Mars Orbiter Mission

b)

Chandrayaan

c)

Aditya-L1

d)

Astrosat

317.

Which Indian mission went to Mars?

a)

Chandrayaan

b)

Mangalyaan

c)

Astrosat

d)

Aditya-L1

318.

Which Indian mission went to Mars?

a)

Chandrayaan

b)

Mangalyaan

c)

Astrosat

d)

Aditya-L1

319.

Which ISRO center is located in Bengaluru?

a)

VSSC

b)

URSC

c)

SDSC

d)

LPSC

320.

What is the name of India’s first interplanetary mission?

a)

Chandrayaan

b)

Mangalyaan

c)

Astrosat

d)

Gaganyaan

321.

Who was the first Chairman of ISRO?

a)

Dr. A.P.J. Abdul Kalam

b)

Dr. Vikram Sarabhai

c)

Dr. Satish Dhawan

d)

K. Sivan

322.

Which mission made India the first Asian country to reach Mars orbit?

a)

Chandrayaan-1

b)

Mangalyaan

c)

Astrosat

d)

Gaganyaan

323.

Which Indian launch vehicle is used for heavy payloads?

a)

PSLV

b)

GSLV Mk III

c)

SLV

d)

ASLV

324.

Which Indian spaceport is located in Andhra Pradesh?

a)

VSSC

b)

URSC

c)

SDSC

d)

LPSC

325.

What does “Gaganyaan Mission” aim to do?

a)

Send a satellite

b)

Send humans to space

c)

Explore Mars

d)

Study the Sun

326.

Which was India’s first communication satellite?

a)

Aryabhata

b)

INSAT-1B

c)

Bhaskara-I

d)

Kalpana-1

327.

Which ISRO mission aims to study the Sun?

a)

Mangalyaan

b)

Aditya-L1

c)

Astrosat

d)

Chandrayaan

328.

Which Indian rocket was first launched in 1980?

a)

PSLV

b)

SLV-3

c)

GSLV

d)

ASLV

329.

Which ISRO mission discovered water on the Moon?Which ISRO mission discovered water on the Moon?

a)

Chandrayaan-1

b)

Chandrayaan-2

c)

Mangalyaan

d)

Aditya-L1

330.

What does PSLV stand for?

a)

Polar Satellite Launch Vehicle

b)

Planetary Science Launch Vehicle

c)

Payload Space Launch Vehicle

d)

Primary Satellite Launch Vehicle

331.

What is the main objective of the Aditya-L1 mission?

a)

Study the Moon

b)

Study the Sun’s corona

c)

Study Mars

d)

Study asteroids

332.

Which ISRO mission attempted a soft landing near the Moon’s south pole?

a)

Chandrayaan-1

b)

Chandrayaan-2

c)

Chandrayaan-3

d)

Mangalyaan

333.

What is the name of the satellite navigation system developed by India?

a)

GPS

b)

IRNSS / NavIC

c)

GLONASS

d)

Galileo

334.

What type of telescope is Astrosat?

a)

Radio telescope

b)

X-ray telescope

c)

Optical telescope

d)

Infrared telescope

335.

Which of the following is not a part of ISRO?

a)

VSSC

b)

DRDO

c)

URSC

d)

SDSC

336.

What is the Chandrayaan-3 lander named?

a)

Pragyan

b)

Vikram

c)

Rakesh

d)

Aryabhata

337.

Which Indian rocket launched Mangalyaan?

a)

PSLV-C25

b)

GSLV Mk III

c)

SLV-3

d)

ASLV

338.

What is the primary fuel used in most modern rockets?

a)

Coal

b)

Liquid hydrogen and oxygen

c)

Kerosene

d)

Diesel

339.

Which Indian mission was nicknamed “MOM”?

a)

Mangalyaan

b)

Chandrayaan

c)

Astrosat

d)

Gaganyaan

340.

Which Indian space mission studied X-ray sources in the universe?

a)

Chandrayaan-2

b)

Mangalyaan

c)

Astrosat

d)

Aditya-L1

341.

Which ISRO center handles rocket launching operations?

a)

URSC

b)

SDSC

c)

VSSC

d)

LPSC

342.

What is the name of the second Indian lunar mission?

a)

Chandrayaan-1

b)

Chandrayaan-2

c)

Chandrayaan-3

d)

Gaganyaan

343.

Which ISRO mission achieved a soft landing on the Moon in 2023?

a)

Chandrayaan-1

b)

Chandrayaan-2

c)

Chandrayaan-3

d)

Aditya-L1

344.

When did India successfully launch its first lunar mission, Chandrayaan-1?

a)

2003

b)

2008

c)

2013

d)

2019

345.

Who invented the reflecting telescope?

a)

Galileo Galilei

b)

Isaac Newton

c)

Johannes Kepler

d)

Edwin Hubble

346.

The instrument used to measure the brightness of stars is —

a)

Spectrograph

b)

Photometer

c)

Interferometer

d)

Microscope

347.

Which part of the telescope gathers and focuses light?

a)

Mount

b)

Mirror/Lens

c)

Eyepiece

d)

Filter

348.

The eyepiece of a telescope is used to —

a)

Collect light

b)

Focus the image

c)

Magnify the image

d)

Reflect light

349.

Which space observatory studies X-rays from black holes?

a)

Chandra

b)

Gaia

c)

Spitzer

d)

Kepler

350.

Which telescope succeeded Hubble as NASA’s flagship?

a)

Chandra

b)

Spitzer

c)

James Webb Space Telescope (JWST)

d)

Kepler

351.

What is a space probe?

a)

Unmanned spacecraft sent to study space

b)

A telescope

c)

A camera

d)

A lab

352.

What is India’s first space-based solar observatory?

a)

AstroSat

b)

Aditya-L1

c)

INSAT

d)

Aryabhata

353.

Which Indian observatory is located near Pune?

a)

GMRT

b)

VBT

c)

HCT

d)

NCRA

354.

Which telescope succeeded Hubble as NASA’s flagship?

a)

Chandra

b)

Spitzer

c)

James Webb Space Telescope (JWST)

d)

Kepler

355.

What is India’s first space-based solar observatory?

a)

AstroSat

b)

Aditya-L1

c)

INSAT

d)

Aryabhata

356.

What instrument detects ultraviolet radiation?

a)

UV detector

b)

Infrared telescope

c)

Microscope

d)

Radar

357.

The telescope mount that tracks celestial objects smoothly is —

a)

Altazimuth

b)

Equatorial

c)

Fixed

d)

Dobsonian

358.

Which telescope orbits the Sun?

a)

Kepler

b)

Kepler

c)

Chandra

d)

INSAT

359.

What is the purpose of a finder scope in telescope?

a)

To locate stars

b)

To magnify images

c)

To cool sensors

d)

To measure distance

360.

Which part of a telescope magnifies the image?

a)

Eyepiece

b)

Tripod

c)

Finder scope

d)

Mirror

361.

The Spitzer telescope studied —

a)

X-rays

b)

Infrared light

c)

Visible light

d)

Gamma rays

362.

Which part of a telescope magnifies the image?

a)

Eyepiece

b)

Tripod

c)

Finder scope

d)

Mirror

363.

Which telescope has a segmented primary mirror?

a)

Hubble

b)

Kepler

c)

James Webb

d)

Chandra

364.

Which type of telescope uses lenses only?

a)

Refracting telescope

b)

Reflecting telescope

c)

Radio telescope

d)

Infrared telescope

365.

The GMRT in Pune observes —

a)

Visible Light

b)

Radio Waves

c)

X-rays

d)

Infrared Light

366.

What type of mirror does a reflecting telescope use?

a)

Concave mirror

b)

Convex mirror

c)

Plane mirror

d)

Flat mirror

367.

What is the main difference between optical and radio telescopes?

a)

Type of radiation detected

b)

Size

c)

Shape

d)

Location

368.

Which telescope is named after Edwin Hubble?

a)

Spitzer

b)

Kepler

c)

Chandra

d)

Hubble

369.

Which part of a telescope gathers light?

a)

Objective lens or mirror

b)

Eyepiece

c)

Tripod

d)

Filter

370.

What is the aperture of a telescope?

a)

The size of its base

b)

The diameter of its primary mirror/lens

c)

The magnification

d)

The tube length

371.

Optical telescopes detect —

a)

Sound

b)

Visible light

c)

Infrared

d)

Ultraviolet

372.

What is the shape of a radio telescope dish?

a)

Square

b)

Parabolic

c)

Flat

d)

Cone

373.

What is the main function of a radio dish?

a)

Collect radio signals from space

b)

Emit sound

c)

Transmit light

d)

Detect meteors

374.

The main mirror in a reflecting telescope is —

a)

Convex

b)

Concave

c)

Flat

d)

Cylindrical

375.

Which telescope looks for exoplanets?

a)

Kepler

b)

Hubble

c)

Gaia

d)

Spitzer

376.

Which Indian telescope studies UV to X-rays?

a)

INSAT

b)

AstroSat

c)

GSAT

d)

Chandrayaan

377.

Cosmic ray detector

a)

Spectrometer

b)

Magnetometer

c)

Radar

d)

Cosmic ray detector

378.

A collimator is used to —

a)

Align light rays parallel

b)

Focus light

c)

Rotate mirrors

d)

Filter dust

379.

Which mission studied the Sun?

a)

Aditya-L1

b)

Mangalyaan

c)

Chandrayaan-1

d)

INSAT

380.

A telescope that uses both mirrors and lenses is called —

a)

Reflector

b)

Refractor

c)

Catadioptric

d)

Compound

381.

Which satellite studies Earth’s weather?

a)

INSAT

b)

Voyager

c)

Hubble

d)

Webb

382.

The main reason for putting telescopes in space is —

a)

To avoid gravity

b)

To get above atmosphere distortion

c)

To save power

d)

To observe nearby objects

383.

Which instrument is used to detect infrared light?

a)

Infrared telescope

b)

Microscope

c)

Spectroscope

d)

Gamma-ray telescope

384.

Who built the first telescope used for astronomy?

a)

Galileo Galilei

b)

Aryabhata

c)

Newton

d)

Johannes Kepler

385.

The main purpose of a telescope is to —

a)

Make stars brighter

b)

Collect and magnify light

c)

Travel in space

d)

Detect sound waves

386.

What do space probes send back to Earth?

a)

Soil

b)

Data and images

c)

Astronauts

d)

Rocks

387.

Which telescope is located in space?

a)

Vainu Bappu

b)

Hubble

c)

GMRT

d)

GMRT

388.

Which telescope studies cosmic microwave background?

a)

Planck Telescope

b)

Kepler

c)

Gaia

d)

Webb

389.

What part of the telescope is responsible for gathering light?

a)

Eyepiece

b)

Objective

c)

Tripod

d)

Filter

390.

Which Indian mission observes UV light?

a)

ASTROSAT

b)

Mangalyaan

c)

INSAT

d)

RISAT

391.

Which ISRO telescope is used for multiwavelength astronomy?

a)

Chandrayaan-1

b)

AstroSat

c)

Aditya-L1

d)

Cartosat

392.

Which Indian planetarium is in Mumbai?

a)

Birla Planetarium

b)

Nehru Planetarium

c)

Planetarium dome

d)

Mumbai planetarium

393.

The telescope that studies infrared radiation is —

a)

Spitzer

b)

Chandra

c)

Kepler

d)

Hubble

394.

Which Indian planetarium is in Bengaluru?

a)

Jawaharlal Nehru Planetarium

b)

Birla Planetarium

c)

Vainu Bappu Planetarium

d)

ISRO Planetarium

395.

Which telescope uses mirrors instead of lenses?

a)

Refractor

b)

Reflector

c)

Catadioptric

d)

Binocular

396.

What is a planetarium used for?

a)

Simulating the night sky

b)

Launching satellites

c)

Training astronauts

d)

Communicating with space

397.

What is the main benefit of putting telescopes on high mountains?

a)

To get closer to stars

b)

To avoid light pollution

c)

To reduce cost

d)

For easy transport

398.

What is a planetarium used for?

a)

Simulating the night sky

b)

Launching satellites

c)

Training astronauts

d)

Communicating with space

399.

The Giant Metrewave Radio Telescope is located near —

a)

Delhi

b)

Pune

c)

Nainital

d)

Kodaikanal

400.

What is a space observatory?

a)

Lab in space

b)

Telescope in space

c)

Space station

d)

Weather satellite

401.

The term 'focal length' refers to —

a)

Mirror size

b)

Distance between lens and focus

c)

Telescope height

d)

Tube diameter

402.

Which type of telescope collects radio waves?

a)

Radio telescope

b)

Optical telescope

c)

Infrared telescope

d)

Gamma-ray telescope

403.

The energy of radio waves is —

a)

Higher than X-rays

b)

Lower than visible light

c)

Same as gamma rays

d)

Equal to UV

404.

What type of telescope is the Hubble?

a)

Optical

b)

Radio

c)

X-ray

d)

Infrared

405.

Why is it impossible to observe X-rays from ground-based telescopes?

a)

Too faint

b)

Blocked by Earth’s atmosphere

c)

Too fast

d)

Absorbed by water vapor

406.

Which telescope studies galaxies in deep space?

a)

James Webb

b)

INSAT

c)

RISAT

d)

NOAA

407.

Which telescope uses a dish antenna to collect data?

a)

Optical

b)

Radio

c)

Infrared

d)

X-ray

408.

Which telescope studies planets that orbit other stars?

a)

Kepler Space Telescope

b)

INSAT

c)

Voyager 1

d)

Chandrayaan-1

409.

What instrument was used to discover Jupiter’s moons?

a)

Binoculars

b)

Galileo’s telescope

c)

Camera

d)

Radar

410.

A 'light-year' is used to measure —

a)

Time

b)

Distance

c)

Speed

d)

Luminosity

411.

What is the main function of a spectroscope?

a)

Measure distance

b)

Split light into colors

c)

Detect sound

d)

Measure temperature

412.

What kind of telescope is used for solar observation?

a)

X-ray

b)

Solar Telescope

c)

Radio

d)

Infrared

413.

What does GMRT stand for?

a)

Giant Multi Radio Telescope

b)

Giant Metrewave Radio Telescope

c)

Global Measurement Radio Telescope

d)

Galactic Monitoring Radio Telescope

414.

A refracting telescope uses which optical element?

a)

Mirror

b)

Lens

c)

Antenna

d)

Filter

415.

Which Indian telescope is in Ladakh?

a)

Himalayan Chandra Telescope

b)

Vainu Bappu Telescope

c)

Giant Metrewave Telescope

d)

Keck Telescope

416.

Which was the first man-made satellite?

a)

Voyager

b)

Sputnik 1

c)

Apollo 11

d)

INSAT

417.

Which telescope can see through clouds and dust in space?

a)

Infrared telescope

b)

Radio telescope

c)

X-ray telescope

d)

Optical telescope

418.

What is the purpose of adaptive optics?

a)

Cooling instruments

b)

Compensating for atmospheric distortion

c)

Reducing cost

d)

Focusing on Sun

419.

Which satellite observes X-rays from space for India?

a)

Hubble

b)

ASTROSAT

c)

Gaia

d)

Kepler

420.

The Indian Astronomical Observatory in Hanle is situated in —

a)

Rajasthan

b)

Kerala

c)

Ladakh

d)

Madhya Pradesh

421.

Which Indian mission studied Mars?

a)

Chandrayaan-1

b)

Mangalyaan

c)

ASTROSAT

d)

RISAT

422.

The Hubble Telescope operates mainly in —

a)

Visible & UV light

b)

X-ray

c)

Infrared only

d)

Radio

423.

Which telescope is used to observe the Sun?

a)

Solar telescope

b)

Radio telescope

c)

Microscope

d)

Radar

424.

The AstroSat observatory observes in how many wavelength bands?

a)

2

b)

3

c)

5

d)

7

425.

What does a radio telescope detect?

a)

Visible light

b)

Sound

c)

X-rays

d)

Radio waves

426.

The Hubble Space Telescope is jointly operated by —

a)

ISRO & NASA

b)

NASA & ESA

c)

NASA & ROSCOSMOS

d)

NASA & JAXA

427.

Which tool helps identify the colors of starlight?

a)

Spectroscope

b)

Microscope

c)

Periscope

d)

Telescope

428.

What instrument records images of planets?

a)

Spectrometer

b)

Camera

c)

Seismograph

d)

Barometer

429.

The first telescope ever used for astronomy was built by —

a)

Galileo Galilei

b)

Isaac Newton

c)

Tycho Brahe

d)

Copernicus

430.

Which space telescope replaced Hubble?

a)

Spitzer

b)

James Webb Space Telescope

c)

Kepler

d)

NuSTAR

431.

The main reason for using large mirrors in telescopes is to —

a)

Increase color

b)

Gather more light

c)

Reduce noise

d)

Zoom in closer

432.

Which telescope studies in infrared light?

a)

Hubble

b)

Spitzer

c)

Chandra

d)

Galileo

433.

What is the Hubble Telescope primarily designed to observe?

a)

Radio waves

b)

Visible and ultraviolet light

c)

X-rays

d)

Infrared only

434.

Which telescope is famous for its images from space?

a)

James Webb Telescope

b)

Hubble Telescope

c)

Chandra Telescope

d)

Spitzer Telescope

435.

What instrument is used to see small details on the Moon’s surface?

a)

Binoculars

b)

Microscope

c)

Telescope

d)

Camera

436.

The main mirror of a reflecting telescope is called the —

a)

Secondary mirror

b)

Objective mirror

c)

Flat mirror

d)

Lens

437.

What instrument helps study the surface of the Moon?

a)

Radio telescope

b)

Space probe

c)

Seismograph

d)

Radar

438.

What is the Hubble Telescope primarily designed to observe?

a)

Radio waves

b)

Visible and ultraviolet light

c)

X-rays

d)

Infrared only

439.

What does a telescope collect?

a)

Water

b)

Sound

c)

Light

d)

Heat

440.

The main mirror of a reflecting telescope is called the —

a)

Secondary mirror

b)

Objective mirror

c)

Flat mirror

d)

Lens

441.

Which telescope orbits the Earth?

a)

Radio telescope

b)

Space Telescope

c)

Ground telescope

d)

Solar telescope

442.

The first Indian astronomical satellite was —

a)

Chandrayaan

b)

Aryabhata

c)

AstroSat

d)

RISAT

443.

What is a telescope used for?

a)

Studying insects

b)

Observing space

c)

Listening to sound

d)

Measuring heat

444.

The part of the telescope that supports it and allows smooth movement is called the —

a)

Base

b)

Mount

c)

Tripod

d)

Pole

445.

The Hubble Telescope is named after —

a)

Galileo

b)

Huygens

c)

Edwin Hubble

d)

Newton

446.

What do we use to look at stars from Earth?

a)

Binoculars

b)

Telescope

c)

Microscope

d)

Camera

447.

Which Indian observatory specializes in solar physics?

a)

Udaipur Solar Observatory

b)

Hanle

c)

Kavalur

d)

ARIES

448.

The device used to separate light into its different colors is called —

a)

Photometer

b)

Spectrometer

c)

Barometer

d)

Oscilloscope

449.

The Mount Wilson Observatory is famous for discovering —

a)

Moons of Jupiter

b)

Expansion of the Universe

c)

Rings of Saturn

d)

Sunspots

450.

What determines the magnification of a telescope?

a)

Aperture size

b)

Focal length of lens and eyepiece

c)

Light wavelength

d)

Mount type

451.

Which Indian telescope is located at Kavalur, Tamil Nadu?

a)

GMRT

b)

Vainu Bappu Telescope

c)

ARIES

d)

IUCAA Telescope

452.

The Chandra X-ray Observatory was launched by —

a)

ISRO

b)

NASA

c)

ESA

d)

JAXA

453.

Which of the following telescopes detects gamma rays?

a)

Fermi

b)

Hubble

c)

JWST

d)

Kepler

454.

A space telescope avoids —

a)

Cosmic rays

b)

Cloud cover

c)

Atmospheric distortion

d)

Magnetic interference

455.

Which Indian telescope observes solar phenomena from space?

a)

Aditya-L1

b)

AstroSat

c)

Chandrayaan-2

d)

Cartosat

456.

In a refracting telescope, which component bends light?

a)

Mirror

b)

Lens

c)

Prism

d)

Filter

457.

Which law relates the recessional velocity of galaxies to their distance from Earth?

a)

Kepler’s law

b)

Hubble’s law

c)

Newton’s law

d)

Wien’s law

458.

Which spectral class of star is the hottest?

a)

O

b)

B

c)

A

d)

A

459.

What causes Type Ia supernovae?

a)

Core collapse

b)

Binary white dwarf accretion

c)

Helium flash

d)

Neutron decay

460.

What do astronomers use to measure stellar distances?

a)

Parallax

b)

Spectra

c)

Luminosity

d)

Magnitude

461.

What does the term “galactic cannibalism” refer to?

a)

Galaxy mergers

b)

Supernova explosions

c)

Star collapse

d)

Cluster collisions

462.

Red giants are formed when a star exhausts which element?

a)

Iron

b)

Helium

c)

Hydrogen

d)

Carbon

463.

What causes the difference between Seyfert I and II galaxies?

a)

Viewing angle

b)

Galaxy size

c)

Star count

d)

Metallicity

464.

A pulsar is a rapidly spinning form of which object?

a)

Neutron star

b)

White dwarf

c)

Protostar

d)

Red giant

465.

What is the dusty region around an AGN called?

a)

Torus

b)

Shell

c)

Halo

d)

Disk

466.

The Hertzsprung–Russell diagram plots stars based on what?

a)

Distance & Size

b)

Luminosity & Temperature

c)

Color & Mass

d)

Density & Orbit

467.

Which AGN shows strong radio lobes far from the core?

a)

Seyfert

b)

Blazar

c)

Radio galaxy

d)

Dwarf galaxy

468.

What is the term for a star’s instrinsic brightness called?

a)

Apparent magnitude

b)

Absolute magnitude

c)

Luminosity

d)

Color index

469.

What is the central engine of all AGNs?

a)

Star cluster

b)

Supermassive black hole

c)

Pulsar

d)

Magnetar

470.

Which phenomenon causes galaxies to appear redshifted?

a)

Expansion of universe

b)

Contraction of universe

c)

Rotation of galaxy

d)

Reflection from galaxy

471.

What is the approximate size of a quasar’s emitting region?

a)

1 ly

b)

1000 ly

c)

Solar System scale

d)

Galaxy scale

472.

Which galaxy is known as M31?

a)

Triangulum

b)

Andromeda

c)

Whirlpool

d)

Sombrero

473.

What is another term for a quasar?

a)

Pulsar

b)

QSO

c)

Nova

d)

Blazar

474.

What do Cepheid variables help astronomers measure?

a)

Distance

b)

Temperature

c)

Mass

d)

Velocity

475.

What is the most luminous type of AGN?

a)

Seyfert

b)

Radio galaxy

c)

Quasar

d)

Blazar

476.

Which law relates a star’s brightness to its distance?

a)

Hubble

b)

Kepler

c)

Inverse-square

d)

Wien

477.

What does the Hubble tuning fork diagram classify?

a)

Planets

b)

Galaxies

c)

Stars

d)

Nebulae

478.

What does Hubble’s Law relate?

a)

Mass & Age

b)

Speed & Distance

c)

Size & Brightness

d)

Color & Shape

479.

What is the boundary between a star’s radiation and convection zones called?

a)

Core

b)

Tachocline

c)

Photosphere

d)

Corona

480.

What is a dark, cold cloud that blocks starlight called?

a)

Reflection nebula

b)

Dark nebula

c)

Emission nebula

d)

Planetary nebula

481.

Which is the nearest galaxy to milky way?

a)

Milky way

b)

Andromeda

c)

M87

d)

Triangulum

482.

Which is the nearest star to our Sun?

a)

Sun centauri

b)

Sirius

c)

Alpha centauri

d)

Proxima centauri

483.

What is the band of light made of millions of stars called?

a)

Star trail

b)

Galaxy

c)

Milky Way

d)

Comet tail

484.

Northern cross is visible from which hemisphere of the Earth

a)

East

b)

West

c)

North

d)

South

485.

What do we call a group of billions of stars bound by gravity?

a)

Solar system

b)

Galaxy

c)

Constellation

d)

Cluster

486.

Which is the nearest star to Earth?

a)

Sirius

b)

Polaris

c)

Alpha Centauri

d)

The Sun

487.

What do astronomers call the brightness of a star?

a)

Temperature

b)

Magnitude

c)

Energy

d)

Power

488.

What color are the hottest stars?

a)

Red

b)

Blue

c)

Yellow

d)

Orange

489.

What is the Milky Way mostly made of?

a)

Stars, dust, and gas

b)

Water and dust

c)

Planets

d)

Comets

490.

What is the most widely accepted theory for the formation of the Solar System?

a)

Capture Theory

b)

Nebular Hypothesis

c)

Tidal Hypothesis

d)

Accretion Model

491.

The Oort Cloud is believed to be the source of:

a)

Short-period comets

b)

Long-period comets

c)

Near-Earth asteroids

d)

Planetary rings

492.

The bright tail of comet always point:

a)

In the direction of its motion

b)

Away from the Sun

c)

Toward the Sun

d)

Toward the Eartg

493.

What are comets primarily made of?

a)

Solid iron and nickel

b)

Silicate rocks only

c)

Ice, dust, and rocky material

d)

Carbon dioxide gas only

494.

Which region of the Solar System contains most asteroids?

a)

Kuiper Belt

b)

Oort Cloud

c)

Asteroid Belt between Mars and Jupiter

d)

Near-Earth Zone

495.

What process led to the formation of planetesimals?

a)

Nuclear fusion

b)

Accretion of dust and ice particles

c)

Magnetic field attraction

d)

Volcanic activity

496.

What is the main function of the rocket’s payload?

a)

To store fuel

b)

To control the rocket’s direction

c)

To carry satellites, astronauts, or scientific instruments

d)

To ignite the rocket engines

497.

What is the main part of a rocket that holds fuel called?

a)

Nose cone

b)

Payload

c)

Fuel tank

d)

Engine

498.

Which part of the rocket carries satellites or astronauts?

a)

Fins

b)

Payload section

c)

Booster

d)

Exhaust

499.

What helps keep the rocket stable during flight?

a)

Fins

b)

Fuel tank

c)

Nose cone

d)

Cabin

500.

Which planet was reclassified as a dwarf planet in 2006?

a)

Neptune

b)

Pluto

c)

Mars

d)

Venus

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