Subcategory

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 Damp Raincoat Mystery

Three roommates claimed they were home during a heavy 8 PM thunderstorm. Roommate A...

2,172 solved Detective

The Vanishing Ice

I am hard as stone in cold winter, but turn into liquid under warm...

3,053 solved Space & Astronomy Riddles

The Silver Moon

I grow fuller every night, then shrink to a crescent, without losing weight. Who...

3,912 solved Space & Astronomy Riddles

The Invisible Giant

I can fill a room, yet I take up no space. I can push...

1,714 solved Insect Riddles

I wear a white pressurized spacesuit and float in zero gravity on the Space...

2,445 solved Easy Who Am I

I wake up early before sunrise to knead dough and bake fresh bread and...

2,038 solved Easy Who Am I

The Australian Hopper

I am a marsupial with a pouch who hops across the Outback. Who am...

4,030 solved Animal Who Am I

The Smart Marshmallow

What is a marshmallow's favorite campfire song?

2,552 solved Funny Riddles for Kids

The Spherical Planet Journey

A man walks 1 mile South, 1 mile East, 1 mile North, landing back...

3,935 solved Hardest Impossible Riddles

The 100 Prisoners Hat

100 prisoners wear black or white hats. Each sees hats in front, not own....

3,025 solved Insect Riddles

Achilles and the Tortoise

Achilles gives a tortoise a 100m head start. Whenever Achilles reaches where the tortoise...

3,405 solved Paradox Riddles

The Arrow in Flight

At any instant, a flying arrow occupies a space equal to itself, so it...

1,355 solved Insect Riddles

1
2
3
…
19
Next ›

PDF • Printable Riddles

Generate Printable Riddles PDF

Create custom PDF riddle activity books, kids classroom quizzes & brain teaser sheets with automatic answer keys in seconds.

Generate Space & Astronomy Riddles Riddles PDF →

🧠 Play Today's Riddle