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Space & Astronomy Trivia Questions and Answers
8 free space & astronomy trivia questions with answers and explanations.
1How many moons does Mars have?
A0
B1
C2✓
D4
💡 Explanation: Mars has two moons: Phobos and Deimos. They are small and irregularly shaped, likely captured asteroids.
2What is the name of the galaxy we live in?
AAndromeda
BMilky Way✓
CTriangulum
DWhirlpool
💡 Explanation: Our galaxy is called the Milky Way. It contains over 100 billion stars and our solar system is located in one of its spiral arms.
3Which planet has the most moons?
AJupiter
BSaturn✓
CUranus
DNeptune
💡 Explanation: As of 2024, Saturn holds the record with 146 confirmed moons, surpassing Jupiter's 95.
4What is the name of the first artificial satellite launched into orbit?
AApollo 1
BVostok 1
CSputnik 1✓
DExplorer 1
💡 Explanation: Sputnik 1 was launched by the Soviet Union on October 4, 1957, becoming the first artificial satellite to orbit Earth.
5How long does light from the Sun take to reach Earth?
A8 minutes✓
B8 seconds
C8 hours
D8 days
💡 Explanation: Sunlight takes approximately 8 minutes and 20 seconds to travel the 150 million kilometers from the Sun to Earth.
6What is a light-year?
AThe age of a star
BThe distance light travels in one year✓
CThe brightness of a star
DThe time it takes to orbit the Sun
💡 Explanation: A light-year is the distance that light travels in one year — approximately 9.46 trillion kilometers (5.88 trillion miles).
7Which planet is known for its Great Red Spot?
AMars
BSaturn
CJupiter✓
DNeptune
💡 Explanation: Jupiter's Great Red Spot is a massive storm that has been raging for at least 400 years, larger than Earth itself.
8What is the closest star to Earth (after the Sun)?
ABetelgeuse
BProxima Centauri✓
CSirius
DAlpha Centauri A
💡 Explanation: Proxima Centauri, at 4.24 light-years away, is the closest known star to Earth other than the Sun.
About Space & Astronomy Trivia Questions
These space & astronomy trivia questions cover a wide range of topics within the space & astronomy category. All questions include four multiple-choice options (A, B, C, D) and a detailed answer explanation to help you understand the topic better.
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