Space science trivia questions, with the answers.

Which is the nearest star to our solar system?
A: Alpha Centauri.

Which planet is covered with frozen methane?
A: Pluto.

Where would you find the Aphrodite Terra?
A: Venus.

Which planet has an atmosphere composed mainly of oxygen and nitrogen in a ratio of 1 to 4?
A: Earth.

What is the name of the largest moon of Uranus?
A: Titania.

What is the largest asteroid, orbiting the Sun every 46 years?
A: Ceres.

Where would you find the Caloris Basin?
A: Mercury.

What is a pulsar?
A: A rapidly rotating neutron star.

Which planet, apart from the Earth, was the first to be orbited by a human made object?
A: Mars.

Whose theories for ever banished the ether from science?
A: Albert Einstein.

Jupiter is largely composed of hydrogen and which other gas?
A: Helium.

What exists within ten dimensions?
A: Superstring.

What is a red giant?
A: A large, old, bright star.

Which constellation is named after the mother of Andromeda?
A: Cassiopeia.

Which planet has a great dark spot?
A: Neptune.

Which theory suggested that the universe had no beginning?
A: Steady-state theory.

Which was the first crewed Apollo spacecraft to orbit the Earth?
A: Apollo 7.

Which galaxy is closest to the Milky Way?
A: Large Magellanic Cloud.

What is the name given to the study of the origins of the cosmos?
A: Cosmogony.

Which planet has the lowest density?
A: Saturn.

The energy of the Sun is produced by which kind of reaction?
A: Fusion.

Which planet is composed of an inner core, a mantle, and an outer crust?
A: Earth.

In which constellation can Betelgeuse be found?
A: Orion constellation.

When did the Big Bang take place?
A: Approximately 15 billion years ago.

How strong is the Moon's gravity, compared with the Earth's?
A: One-sixth as strong.

Europa is a moon of which planet?
A: Jupiter.

What is the Hertasprung-Russell diagram?
A: A graph plotting the luminosities of stars against their temperatures.

Which planet has the largest number of moons?
A: Saturn.

Which gas gives Neptune its blue color?
A: Methane.