50 Astronomy Quiz Questions and Answers Only True Stars Can Ace

Disclosure: This post may contain affiliate links, meaning I get a commission if you decide to make a purchase through my links, at no extra cost for you

How much do you know about the universe? It’s time to test your knowledge with this ultimate Astronomy quiz!

Astronomy is the study of the universe. It’s about everything beyond planet Earth which includes stars, planets and more.

In this game, you will find 5 rounds of quiz questions and answers about Astronomy.

For every round, you will find first the questions and then the questions and answers which means that you can play on your own and won’t have to go back and forth.

Round 1: Easy Astronomy Trivia Questions

1. What is the largest planet in our Solar System?
2. What force keeps planets in orbit around the sun?
3. The asteroid belt is located between which two planets?
4. In 2006, Pluto was reclassified as a dwarf planet. What was it previously classified as?
5. Who was the first person to walk on the moon?
6. What is the nearest galaxy to the Milky Way?
7. What can be observed when the moon passes through the Earth’s shadow?
8. Most astrophysicists believe that the universe began with what?
9. What are Russian astronauts called?
10. The sun is made primarily of what gas?

Round 1: Easy Astronomy Trivia Questions and Answers

1. What is the largest planet in our Solar System? Jupiter
2. What force keeps planets in orbit around the sun? Gravity
3. The asteroid belt is located between which two planets? Mars and Jupiter
4. In 2006, Pluto was reclassified as a dwarf planet. What was it previously classified as? A Planet
5. Who was the first person to walk on the moon? Neil Armstrong
6. What is the nearest galaxy to the Milky Way? Andromeda Galaxy
7. What can be observed when the moon passes through the Earth’s shadow? Lunar Eclipse
8. Most astrophysicists believe that the universe began with what? The Big Bang
9. What are Russian astronauts called? Cosmonauts
10. The sun is made primarily of what gas? Hydrogen

Round 2: Astronomy Multiple Choice Questions

1.Halley’s Comet returns to Earth’s vicinity approximately every….

1. 25 years
2. 50 years
3. 75 years
4. 100 years

2. Venus is covered by clouds made of what substance?

1. Sulphuric acid
2. Liquid mercury 
3. Hydrochloric acid
4. Water

3. How far is a light year?

1. 3.88 trillion miles
2. 5.88 trillion miles
3. 7.88 trillion miles
4. 9.88 trillion miles

4. What is the fastest rotating planet in our Solar System?

1. Mercury
2. Earth
3. Jupiter
4. Neptune

5. How long does a day last on Venus?

1. 8 hours
2. 8 days
3. 8 months 
4. 8 years

6. The Grant Impact theory posits that as a young planet, Earth was hit by another planet called Theia, resulting in what?

1. The formation of the Earth’s atmosphere
2. The presence of superheavy elements such as lithium and magnesium
3. The origins of life on Earth
4. The formation of the moon

7. What will our sun become when it runs out of nuclear fuel?

1. White dwarf
2. Red dwarf
3. Neutron Star
4. Black Hole

8. When will the next Transit of Venus be visible from Earth?

1. 2027
2. 2057
3. 2087
4. 2117

9. Why is the famous line ‘In space no-one can hear you scream’ true?

1. Because sound can’t travel through a vacuum
2. Because the sound waves would travel too fast for humans to register
3. Because human ears are ineffective in zero gravity
4. Because it’s impossible for a human to scream in space

10. Which of the following space probes has travelled the furthest from Earth?

1. Voyager 1
2. Voyager 2
3. New Horizons
4. LICIACube

Round 2: Astronomy Multiple Choice Questions and Answers

1. Halley’s Comet returns to Earth’s vicinity approximately every…. C. 75 years

2. Venus is covered by clouds made of what substance? A. Sulphuric Acid

3. How far is a light year? B. 5.88 trillion miles

4. What is the fastest rotating planet in our Solar System? C. Jupiter

5. How long does a day last on Venus? C. 8 months

6. The Grant Impact theory posits that as a young planet, Earth was hit by another planet called Theia, resulting in what? D. The formation of the moon

7. What will our sun become when it runs out of nuclear fuel? A. White Dwarf

8. When will the next Transit of Venus be visible from Earth? D. 2117

9. Why is the famous line ‘In space no-one can hear you scream’ true? A. Because sound can’t travel through a vacuum

10. Which of the following space probes has travelled the furthest from Earth? A. Voyager 1

Round 3: Astronomy Quiz – True or False

1. The Ancient Greek God of the underworld was named after the dwarf planet Pluto?
2. Titan is the largest moon in the Solar System.
3. There is a supermassive black hole at the centre of the Milky Way galaxy.
4. Earth is orbited by about 270 pieces of man-made ‘space junk.’
5. Venus is the densest planet in the solar system.
6. 6500 light-years from Earth is a giant cloud made of enough alcohol to make 400 septillion pints of beer.
7. There are more trees on earth than there are stars in the Milky Way.
8. The International Space Station is about the size of 3 and a half American football fields.
9. Earth is approximately 25800 light-years from the galactic centre of the Milky Way?
10. Betelguese is the largest star visible to the naked eye.

Round 3: Astronomy Quiz Answers- True or False

1. The Ancient Greek God of the underworld was named after the dwarf planet Pluto? False, the dwarf planet Pluto was named after the Greek God of the underworld.
2. Titan is the largest moon in the Solar System. False, it’s Ganymede
3. There is a supermassive black hole at the centre of the Milky Way galaxy. True
4. Earth is orbited by about 270 pieces of man-made ‘space junk.’ False, it’s more like 27 thousand pieces
5. Venus is the densest planet in the solar system. False, it’s Earth
6. 6500 light-years from Earth is a giant cloud made of enough alcohol to make 400 septillion pints of beer. True
7. There are more trees on earth than there are stars in the Milky Way. True
8. The International Space Station is about the size of 3 and a half American football fields. False, it’s three feet smaller than one American football field.
9. Earth is approximately 25800 light-years from the galactic centre of the Milky Way? True
10. Betelguese is the largest star visible to the naked eye. True

Round 4: Medium Astronomy Trivia Questions

1. What is the donut shaped ring of icy bodies located beyond the orbit of Neptune?
2. What is the most common type of star in the universe?
3. What is the brightest star in the Canis Major constellation?
4. What is the name for the study of life in the universe?
5. Which astronomer discovered Pluto?
6. What gas amounts for around 10% of the composition of Jupiter?
7. According to Einstein’s theory of general relativity, what could theoretically occur if a black hole were to connect to a white hole?
8. Ceres, Makemake, Haumea and Eris are all examples of what?
9. What was the first planetary nebula ever discovered?
10. Laika the dog was not the first animal in space, but she was the first animal to do what?

Round 4: Medium Astronomy Trivia Questions and Answers

1. What is the donut shaped ring of icy bodies located beyond the orbit of Neptune? Kuiper Belt
2. What is the most common type of star in the universe? Red Dwarfs
3. What is the brightest star in the Canis Major constellation? Sirius
4. What is the name for the study of life in the universe? Astrobiology
5. Which astronomer discovered Pluto? Clyde Tombaugh
6. What gas amounts for around 10% of the composition of Jupiter? Helium
7. According to Einstein’s theory of general relativity, what could theoretically occur if a black hole were to connect to a white hole? A wormhole
8. Ceres, Makemake, Haumea and Eris are all examples of what? Dwarf Planet
9. What was the first planetary nebula ever discovered? Messier 27
10. Laika the dog was not the first animal in space, but she was the first animal to do what? Orbit the Earth

Round 5: Hard Astronomy Trivia Questions

1. What does NASA stand for?
2. What is the name of the low level of microwave radiation that fills all of space?
3. Who was the first woman in Space?
4. What is it called when a satellite takes exactly the same time to rotate as it does to complete an orbit? 
5. What is the fastest space probe ever built?
6. The TARDIS project sent what kind of animal to space to see if they could survive the extreme conditions?
7. What is the name of the visible surface of the sun?
8. What is the only large moon in our solar system that orbits in the opposite direction to the planet’s rotation?
9. Due to dust in the Martian atmosphere, what colour do sunsets appear from the surface of Mars?
10. What theory posits that the universe will end by collapsing in on itself when its own gravity overwhelms the power of expansion?

Round 5: Hard Astronomy Trivia Questions and Answers

1. What does NASA stand for? National Aeronautics and Space Administration
2. What is the name of the low level of microwave radiation that fills all of space? Cosmic Microwave Background 
3. Who was the first woman in Space? Valentina Tereshkova
4. What is it called when a satellite takes exactly the same time to rotate as it does to complete an orbit?  Tidal Locking
5. What is the fastest space probe ever built? Parker Solar Probe
6. The TARDIS project sent what kind of animal to space to see if they could survive the extreme conditions? Tardigrades
7. What is the name of the visible surface of the sun? Photosphere
8. What is the only large moon in our solar system that orbits in the opposite direction to the planet’s rotation? Triton
9. Due to dust in the Martian atmosphere, what colour do sunsets appear from the surface of Mars? Blue
10. What theory posits that the universe will end by collapsing in on itself when its own gravity overwhelms the power of expansion? The Big Crunch

Round 6: Astronomy Picture Quiz

Round 6: Astronomy Picture Quiz Answers

1. Venus
2. Jupiter
3. Ursa Major
4. The Hubble Telescope
5. Cat’s Eye Nebula
6. Buzz Aldrin
7. Transit of Venus
8. Dragon Space Shuttle
9. Copernicus
10. Pluto

You may also be interested in:

• Solar System Quiz: 50 Quiz Questions and Answers about Solar System
• Easy Science Quiz: 60 Easy Science Questions and Answers