Astronomy Quiz-Cosmic Companions

Why does Mars appear red?

• Its surface is covered in rust (iron oxide)

• It reflects the Sun’s red light

• It has a thick atmosphere of methane

• It is covered with volcanic rocks

What does "Mars at opposition" mean?

• Mars is farthest from Earth

• Mars is closest to Earth in its orbit

• Mars is directly behind the Sun as seen from Earth

• Mars aligns with the Moon

What are Jupiter's four largest moons called?

• Saturnian moons

• The Galilean moons

• Martian satellites

• The Gas Giants

Why can all planets be seen during a planet alignment?

• The Sun lights up all planets equally

• The planets are on the same side of the Sun

• The planets temporarily stop moving

• Earth rotates in sync with all planets

Which planet is known as a "Gas Giant"?

• Mars

• Earth

• Jupiter

• Venus

What causes gravity?

• The rotation of the Earth

• Mass attracting other mass

• The pull of the Sun

• Air pressure

Which scientist proposed the theory of general relativity?

• Isaac Newton

• Galileo Galilei

• Albert Einstein

• Stephen Hawking

What happens to time in a strong gravitational field?

• Time speeds up

• Time slows down

• Time stays the same

• Time moves backward

What is a black hole?

• A giant star

• A region where gravity is so strong that nothing, not even light, can escape

• A hole in space created by comets

• A planet-sized object

What does the term "space-time" refer to?

• The distance between stars

• The combination of space and time into one concept

• The time taken to travel through space

• A type of telescope