105 Space Riddles That Are Out of This World

Last Updated on November 4, 2022 by Michele Tripple

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Ready to solve some of the best space riddles that are genuinely out of this world? Well, hop on board to fly to outer space with these fun space riddles for kids. 

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Do you have kids that love everything in space? Well, you are in luck because we have gathered some of the very best space riddles to take your mind to another galaxy. These space riddles are out of this world!! 

They are super fun for kids and adults! Perfect for sharing with family, friends, classrooms, and other gatherings. Be sure to bookmark this page so you can come back to memorize and share more laughs! While you are at it, be sure to check out some of our other fun riddles, like our Halloween riddles. Be sure to soar over and see our Space Charades Game and space word search.

Do your kids love jokes? Grab these fun joke cards for them to laugh at all the time! These are perfect for lunch box jokes, joke cards series, bedtime laughs, and more! Grab them now!

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The Best Space Riddles

A rocket that is green, orange, and blue flying with a space riddle with a teal border.

Q: How does Einstein begin a story?

A: Once upon a space-time……

Q: How do you organize a space party?

A: You planet!

Q: How do astronauts eat their ice creams?

A: In floats!

Q: How are prisoners like astronauts?

A: Both are interested in outer space

Q: Have you heard about the cow astronaut?

A: He landed on the moooon!
A green planet with a red ring around it with four yellow stars and a riddle about space with a teal border.

Q: From the beginning of eternity To the end of time and space To the beginning of every end And the end of every place.

What am I?

A: The letter ‘e’.

Q: Empty as space, Scary as a ghost, I appear every night

What am I?

A: Darkness.

Q: Blacker than black, colder than cold, some things out here are worth more than gold.

What is it?

A: Space.

Q: Artificial satellites orbit the earth here.

Who am I?

A: Exosphere

Q: An old-fashioned bike wheel has 21 spokes. How many spaces are between the spokes – 20, 21, or 22?

A: 21
One-eyed green alien in a red, yellow, and blue flying saucer with a space riddle and teal border.

Q: A man was just doing his job when his suit was torn. Why did he die three minutes later?

A: He was an astronaut on a spacewalk, doing repairs.

Q: A glow in the dark, A place without life, Where a small spark, Means the greatest strife.

Where am I?

A: Space.

Q: How does NASA throw a party?

A: The planet.

Q: How does the man-in-the-moon cut his hair?

A: Eclipse it!

Q: How does the moon cut his hair?

A: E-clipse it!
A red star with three yellow dots with a riddle about space with a teal border.

Q: I always follow you around, everywhere you go at night. I look very bright to people, but I can make the sun dark. I can be in many different forms and shapes.

What am I?

A: The moon!

Q: I am bigger than Venus but smaller than Uranus. I am a living rock.

What am I??

A: Earth.

Q: I am something in the sky. That seems to shine at night. However, Im not a star. I am Earths satellite.

What am I?

A: The moon!

Q: I am the beginning of the end and the end of time and space. I am essential to creation, and I surround every place.

A: The letter “E”.

Q: I am the hottest body in the solar system. I keep everyone warm.

What am I?

A: The sun.
Orange and yellow full moon shape rock with a space riddle and teal border.

Q: I can be half without getting thinner. I can shine with no fire. I can be hidden but never taken. I can stay dry while moving through the ocean.

What am I?

A: The moon.

Q: I can kill people, but without me, there would be no people. I was born long ago and will someday die. I can cause fire and am a magician with water. I have more brothers than any person. It is very little that can stop me.

What am I?

A: A celestial body.

Q: I have keys but no locks. I have a space but no room. You can enter, but can’t go outside.

What am I?

A: A keyboard.

Q: I’m a god, a planet, and a measurer of heat.

Who am I?

A: Mercury.

Q: I’m behind you In front of you And all around.

What am I?

A: Space.
A shooting comet that has yellow and red flames with a space riddle and teal border.

Q: I’m far away from you, but I still shine bright. I sleep by the day, I wake up at night. I stay by the moon but never get close to it.

What am I?

A: A star.

Q: I’m named after a Roman God, I’m the fourth planet from the sun, I am known as the red planet, And have two moons rather than one.

Who am I?

A: Mars.

Q: I’ve existed for Trillions of years but have only been around for 30 days.

What am I?

A: The moon. You get a full moon every 30 days.

Q: If a wheel has 64 spokes, how many spaces are there between the spokes?

A: The space that comes after the 64th spoke, would be just before the first spoke.

Q: If you don’t move I move, if you move I still move. I can shine but am not a light bulb. I will fall before you wake up.

What am I?

A: The moon.
Many small green circles around orange and yellow circles stack on each other with a space riddle and a teal border.

Q: If you go to outer space. And head away from the sun. The first planet you would reach. Would be this red, dusty one.

Which planet is it?

A: Mars.

Q: If you look up during the day. Then you will see this lit. Because it is Earth’s closest star. Around which we orbit.

What is it?

A: The sun

Q: I’m full of gas but I’m not a car, I have many rings but I’m not a jewelry store, I’m a Roman god but I’m not Janus, I’m a large planet but I’m not Jupiter.

What am I?

A: Saturn.

Q: I’m red but I’m not a stop light, I’m named after a Roman God but I’m not Apollo, I have a Mount Olympus but I’m not Greece, I have polar ice caps but I’m not the Arctic Circle, I’m a planet but I’m not Jupiter.

What am I?

A: Mars.

Q: Inside me, there is a teacup, a planet, a shelf, and you!

What Am I?

A: The Universe!
Silver space satellite with a space riddle and teal border.

Q: It can fill a room without occupying space.

What is that?

A: Light.

Q: It’s been around for millions of years, but its no more than a month old.

What is it?

A: The moon.

Q: Large as a mountain, small as a pea, and endlessly swimming in a waterless sea.

What am I?

A: Asteroids.

Q: My father is the moon, my mother is the sea, and I die when I reach land.

What am I?

A: Waves.

Q: One-fourth of the population of a newly discovered planet has 4 legs. The rest have two legs. There are 60 legs in total. How big is the population of the newly discovered planet?

A: 24.
Earth with a riddle about space with a teal border.

Q: People have stepped on me, but not many. I never stay full for long. I have a dark side.

What am I?

A: The moon.

Q: Pregnant every time you see her, yet she never will give birth.

What is she?

A: Full moon.

Q: Saying Buzz Aldrin was first, to step foot here would be wrong, because one small step for man, was taken by Neil Armstrong.

A: The moon.

Q: Some planets have many of these, But for our planet, there is only one, It causes a solar eclipse When it gets between the Earth and the sun.

What is it?

A: The moon.

Q: The beginning of eternity, The end of time and space. The beginning of every end, And the end of every place.

A: E.
Blue and green stars with an orange dot in the middle with a riddle about space and a teal border.

Q: The ghost of the mountain never to be seen, leaps like a raging fire to catch his prey. As pale as the moon but fast as the wind. Cold as ice, but a flash of light in the night.

What is it?

A: A snow leopard.

Q: There is a faraway place. That has both light and dark sides. It’s gravitational pull. Has an effect on Earth’s tides.

What is it?

A: The moon.

Q: These are giant balls of gas, Many light-years away, Most are only seen at night, Although ones are seen in the day.

A: Stars.

Q: This has hardly any atmosphere, Which means that there is no rain, It’s a place that orbits around the Earth, Which we can see wax and wane.

A: The moon.

Q: Very few men have ever been here, But one man has been for thousands of years.

What am I?

A: The moon.
Orange and yellow moon with a yellow flag flying on it with a riddle about space and a teal border.

Q: What can fill a room but takes up no space?

A: Light.

Q: What did Mars say to Saturn?

A: Give me a ring sometime!

Q: What did the computer eat on the moon?

A: Space bars.

Q: What did the falling space rock say when it landed on a pig farm?

A: Move over bacon, here comes something Meteor!

Q: What did the spaceman say when he set foot on a giant chocolate bar?

A: I have just set foot on Mars.
A rocket that is green, orange, and blue flying with a space riddle with a teal border.

Q: What do you call a wizard from outer space that can fly?

A: A flying sorcerer!

Q: What do you call an alien with three eyes?

A: An aliiien!

Q: What do you get if you cross Santa Claus with a spaceship?

A: A u-f-ho-ho-ho!

Q: What is always moving, never tired, and dread not being admired?

A: The moon.

Q: What is an alien’s favorite outdoor game to play with humans?

A: Flying disc.
A green planet with a red ring around it with four yellow stars and a riddle about space with a teal border

Q: What is an astronaut’s favorite chocolate?

A: A mars bar!

Q: What is bright but sometimes doesn’t give off light?

A: The moon.

Q: What is the best way to get from earth to mars?

A: PLANET!

Q: What is yellow, looks like the moon, and has seeds?

A: A banana.

Q: What kind of drinks do aliens like best?

A: Gravi-tea.
One-eyed green alien in a red, yellow, and blue flying saucer with a space riddle and teal border.

Q: What kind of music do aliens like?

A: Nep-tunes.

Q: What kind of plates do they use in space?

A: Flying saucers!

Q: What object has keys that open no locks, space but no room, and you can enter but not go in?

A: A computer keyboard.

Q: What only starts to work after it’s fired?

A: A rocket!

Q: What sea is in space?

A: The galax-sea.
A red star with three yellow dots with a riddle about space with a teal border.

Q: What snack does the Man in the Moon like?

A: Space-chips.

Q: What sound does a space turkey make?

A: Hubble, Hubble, Hubble.

Q: What type of songs do the planets sing?

A: Nep-tunes!

Q: What was the first animal in space?

A: The cow that jumped over the moon.

Q: When is the moon heaviest?

A: When it is full.
Orange and yellow full moon shape rock with a space riddle and teal border.

Q: When looking at the solar system. This planet is between Venus and Mars. You won’t see any flying saucers. But you can find people in their cars.

What is it?

A: Earth.

Q: When was beef the highest that it has ever been?

A: When the cow jumped over the moon.

Q: Where do astronauts keep their sandwiches?

A: In a launch box!

Q: Where do astronauts leave their spaceships?

A: At parking meteors

Q: Which one of Santa’s reindeer can you see in outer space?

A: Comet.
A shooting comet that has yellow and red flames with a space riddle and teal border.

Q: Which reindeer loves to go to outer space?

A: Comet.

Q: Why couldn’t the astronaut book a room on the moon?

A: Because it was full.

Q: Why did all the pecans go to space?

A: They were Astro-nuts!

Q: Why did Mickey Mouse go to outer space?

A: He was looking for Pluto!

Q: Why did the cow become an astronaut?

A: So it could walk on the moooo-n.
Many small green circles around orange and yellow circles stack on each other with a space riddle and a teal border.

Q: Why did the meteor go to Hollywood?

A: He wanted to be a star!

Q: Why did the moon skip diner?

A: Because it was full.

Q: Why did Venus have to get an air conditioner?

A: Because Mercury moved in.

Q: Why is the moon like a dollar?

A: Because it has four quarters.

Q: Why isn’t the moon a good vacation destination?

A: It lacks atmosphere.
Silver space satellite with a space riddle and teal border.

Q: Why would it be boring to eat at a restaurant on the moon?

A: Because there is no atmosphere.

Q: Can you complete each list? 1. Red, White, and 2. Stop, Look, and 3. Sun, Moon, and 4. Ready, Set, ? 5. Readin’, writin’, and?

A: 1. Blue 2 Listen 3. Stars 4. Go 5. ‘Rithmetic

Q: Soldiers line up spaced with pride, Two long rows lined side by side. One sole unit can decide If the rows will unite or divide. Tell me, tell me, scream it out. What’s the thing I talk about?

A: A zipper.

Q: NASA was considering sending canaries into space to study them under zero gravity. The project was scrapped when someone realized that in spite of having sufficient water supplies, they could die of dehydration within a few hours.

Why?

A: Birds, unlike humans, need gravity to swallow. Humans can swallow even while hanging upside down.

Q: Why couldnt the astronaut book a room on the moon?

A: Because it was full.
Earth with a riddle about space with a teal border.

Q: It spins at 1,000 miles per hour
Although it is not a fairground ride
At its center there is a molten core
And it has a crust on its outside
What is it?

A: Earth

Q: How do you get a baby astronaut to sleep?

A: You rocket!

Q: What planet has the shortest year?

A: Mercury

Although I’m not a window.
I am something you look through.
I’m often on a tripod.
Things in space I help you view.

What am I?

A: Telescope.

Q: A star that pulsates radially, changing both diameter and temperature is called a …?

A: Cepheid.
Blue and green stars with an orange dot in the middle with a riddle about space and a teal border.

Q: Which rover was the first to explore Mars?

A: Sojourner

Q: Which two planets are the closest in size?

A: Uranus and Neptune

Q: In Russia it is a tradition for astronauts to do what before blasting off into space…?

A: Plant a tree.

Q: What is the source of the fast radio burst (FRB)?

A: Its source is unknown.

Q: What type of nebula is the Horsehead Nebula?

A: Dark Nebulae
Orange and yellow moon with a yellow flag flying on it with a riddle about space and a teal border.

Do you have some favorite space riddles for kids? Share in the comments so we can add them to the list!

You can Never Have Too Many Riddles! Complete List of Mind-Blowing Riddles!

 
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