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Space & Astronomy Riddles

Part of Science Riddles collection

Explore 226+ unique, interactive space & astronomy riddles puzzles.

Out-of-this-world riddles about planets, stars, black holes, galaxies, and astronauts.

Interactive Riddle Challenge

Showing Space & Astronomy Riddles riddles

The Falling Feather

On the Moon, I fall at the same speed as a hammer. On Earth,...

12,767 solved Bird Riddles

The Invisible Force

I hold you to the ground, I keep the Moon orbiting Earth, and I...

2,255 solved Physics Riddles

The Twin Paradox

If you travel in a spaceship near the speed of light and return, you...

14,613 solved Paradox Riddles

I am a giant ball of fire in the sky. I give Earth light...

9,911 solved Insect Riddles

I cause the oceans to rise and fall twice daily. I am controlled by...

15,963 solved Nature Riddles

The Sunrise Alarm

I scream at you every morning, you hit me to make me stop for...

9,720 solved Object What Am I

The Monday Dread

I come once a week, everyone groans when I arrive, and I follow the...

18,419 solved Office Riddles

The Full Moon Change

I look normal by day but when the full moon rises I grow fangs...

10,113 solved Monster Riddles

I sleep in a coffin, I am afraid of garlic and sunlight, and I...

21,425 solved Biology Riddles

The Unreachable Star

If the universe is expanding faster than light, there are stars whose light will...

24,221 solved Mind Bending Riddles

The Burning Island

You are stranded on an island. A fire starts on one end (wind blowing...

23,808 solved Interview Riddles

The Transformation Bug

I start as a caterpillar, build a cocoon, and emerge with colorful wings. What...

4,815 solved Insect Riddles

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