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Astronomy & Space Quiz
Astronomy & Space Quiz
20 questions · Unlimited attempts · Free online practice
Astronomy is one of humanity's oldest sciences, exploring the universe beyond Earth - its planets, stars, galaxies, black holes, and the cosmic events that shaped existence itself....
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All 20 questions in this Astronomy & Space quiz
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Which planet has a moon named Triton?
- A. Saturn
- B. Jupiter
- C. Uranus
- D. Neptune
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Which planet has the shortest day?
- A. Mercury
- B. Jupiter
- C. Mars
- D. Earth
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What is the name of the largest known star?
- A. Sun
- B. Betelgeuse
- C. UY Scuti
- D. Rigel
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Which planet has most moons?
- A. Mars
- B. Saturn
- C. Earth
- D. Jupiter
-
What is the Oort Cloud?
- A. A region of comets
- B. A galaxy arm
- C. A gas nebula
- D. A star cluster
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Which planet has a day longer than its year?
- A. Venus
- B. Mars
- C. Jupiter
- D. Mercury
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What is the sun's visible surface called?
- A. Photosphere
- B. Corona
- C. Chromosphere
- D. Core
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What is the name for the 'soil' on the Moon?
- A. Silt
- B. Dust
- C. Mud
- D. Regolith
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Which planet rotates on its side?
- A. Uranus
- B. Jupiter
- C. Neptune
- D. Saturn
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What is the boundary of a black hole called?
- A. Singularity
- B. Orbit
- C. Event Horizon
- D. Wormhole
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Which layer of the atmosphere is the 'garbage dump' for satellites?
- A. Exosphere
- B. Stratosphere
- C. Troposphere
- D. Mesosphere
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What is the age of the universe approximately?
- A. 13.8 billion
- B. 1 trillion
- C. 100 billion
- D. 4.6 billion
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What is the most abundant gas in the universe?
- A. Nitrogen
- B. Hydrogen
- C. Helium
- D. Oxygen
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Which planet has the strongest winds in the solar system?
- A. Uranus
- B. Neptune
- C. Jupiter
- D. Saturn
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Which planet has the strongest winds?
- A. Neptune
- B. Jupiter
- C. Saturn
- D. Earth
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What is the visible surface of the Sun called?
- A. Chromosphere
- B. Core
- C. Photosphere
- D. Corona
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Which is the brightest star in the night sky?
- A. Polaris
- B. Betelgeuse
- C. Sirius
- D. Rigel
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What is the name of the closest star system to Earth?
- A. Betelgeuse
- B. Andromeda
- C. Sirius
- D. Alpha Centauri
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Which is the brightest star?
- A. Vega
- B. Rigel
- C. Sirius
- D. Polaris
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What is the 'Kuiepeer Belt'?
- A. A planet ring
- B. A star cluster
- C. A region of icy objects
- D. A galaxy arm