SETI IIT Indore - quiz 1

Approximately how far away is the Alpha Centauri system?

• 1 lightyear

• 4 lightyears

• 40 lightyears

• 100 lightyears

• 400 000 lightyears

What are the two largest planets in our Solar System called?

• Earth and Mars

• Jupiter and Saturn

• Uranus and Neptune

• Mercury and Earth

• Saturn and Neptune

Which statements about exoplanets are correct? (You need to mark all correct answers)

• Jupiter-sized exoplanets are the most common

• The closest known exoplanet is about 4 lightyears away

• Binary stars have no exoplanets

• More than 40% of stars host exoplanets

• All exoplanetary systems resemble our Solar System

Which statements about the circumstellar habitable zone (CHZ) are correct? (Mark all correct answers)

• Venus is in the CHZ of our Solar System

• An Earth-sized planet in the CHZ may host liquid water on its surface

• If Earth is moved outward from the CHZ, our oceans would boil

• If Earth is moved outward from the CHZ, our oceans would freeze

• Since the moon Europa is not in the CHZ, it cannot host a subsurface ocean

Which statements about the Milky Way are correct? (Mark all correct answers)

• The Milky Way is the name of our Solar System

• The Milky Way is about 100 000 lightyears across

• Many exoplanets in the Milky Way are known to host life

• There are more than 100 billion stars in the Milky Way

• We live in the centre of the Milky Way

Which stars are the most common?

• M dwarfs

• K dwarfs

• G dwarfs

• F dwarfs

• Solar-type stars

What do we call a 100-meter sized rock between the orbits of Mars and Jupiter?

• Meteorite

• Comet

• Moon

• Asteroid

• Dwarf planet

Which option best describes an extremophile?

• An extraterrestrial organism

• An organism able to live in extreme environments

• An organism that spreads through panspermia

• A collector of extreme meteorites

• An exoplanet on an extremely eccentric orbit

The distance to the Sun is about...

• 8 lightseconds

• 8 lightminutes

• 8 lighthours

• 8 lightyears

• 1 parsec

Which of the following is believed to host large quantities of liquid water? (Mark all correct answers)

• Europa

• Enceladus

• Charon

• Phobos

• Io