Astronomy Trivia Questions & Answers – Out of This World!
Are you fascinated by the stars, planets, and mysteries of the universe? This astronomy trivia quiz is packed with questions about our solar system, famous space missions, and cosmic phenomena.
Answers are provided below—let’s blast off into trivia space!
🌟 Astronomy Trivia Questions
🌍 Solar System
- How many planets are in our solar system?
- What planet is known as the “Red Planet”?
- Which is the largest planet in the solar system?
- What planet is closest to the Sun?
- What is the only planet known to support life?
- Which planet has the most moons?
- What planet is famous for its rings?
- What is the smallest planet in the solar system?
- What planet is tilted on its side?
- Which two planets rotate in the opposite direction of most others?
🌕 Moon & Earth
- How many moons does Earth have?
- What is the name of the first human to walk on the Moon?
- What year did the Apollo 11 mission land on the Moon?
- What is a lunar eclipse?
- What causes the Moon to shine?

🚀 Space Exploration
- What was the name of the first artificial satellite sent into space?
- Which country launched Sputnik?
- What does NASA stand for?
- Who was the first person in space?
- What spacecraft carried the Mars Rover Perseverance?
- What is the International Space Station (ISS) used for?
- Which private company first sent astronauts to space?
- What famous space telescope launched in 1990?
- What was the name of the first space shuttle?
- What is the longest a person has lived in space continuously?
🌌 Stars & Galaxies
- What is the closest star to Earth?
- What is a supernova?
- What galaxy is Earth located in?
- What is the name of our galaxy’s closest neighbor?
- What is a black hole?
- What star do we see during the day?
- Which constellation looks like a hunter?
- What do we call a star that suddenly increases in brightness?
- What is a nebula?
- What color are the hottest stars?

☄️ Fun Space Facts
- What’s the name of the dwarf planet once considered the ninth planet?
- What’s the term for a rock from space that hits Earth’s surface?
- How long does light from the Sun take to reach Earth?
- What does the term “light-year” measure?
- What gas makes up most of the Sun?
- What’s the coldest planet in the solar system?
- What planet has the highest mountain in the solar system?
- What causes a shooting star?
- What’s the name of the rover that sings happy birthday to itself on Mars?
- What is the Great Red Spot on Jupiter?
✅ Astronomy Trivia Answers
Solar System
- 8
- Mars
- Jupiter
- Mercury
- Earth
- Saturn
- Saturn
- Mercury
- Uranus
- Venus and Uranus
Moon & Earth
- 1
- Neil Armstrong
- 1969
- When the Earth blocks sunlight from reaching the Moon
- Reflected sunlight
Space Exploration
- Sputnik 1
- Soviet Union
- National Aeronautics and Space Administration
- Yuri Gagarin
- Atlas V
- Research and international collaboration
- SpaceX
- Hubble Space Telescope
- Columbia
- 437 days (Valeri Polyakov)

Stars & Galaxies
- The Sun
- An exploding star
- The Milky Way
- Andromeda Galaxy
- A region of space where gravity is so strong, nothing escapes
- The Sun
- Orion
- Nova
- A cloud of gas and dust in space
- Blue
Fun Space Facts
- Pluto
- Meteorite
- About 8 minutes
- Distance light travels in a year
- Hydrogen
- Uranus
- Mars (Olympus Mons)
- A meteor burning in Earth’s atmosphere
- Curiosity
- A giant storm




