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Astronomy Riddles

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Astronomy is the fascinating study of the stars, planets, galaxies, and everything beyond Earth’s atmosphere. But what happens when we mix this awe-inspiring science with a bit of fun? That’s where astronomy riddles come in! These clever puzzles not only challenge your brain but also spark curiosity about the universe.

So get ready to think outside the planet—let the stargazing and riddle-solving begin!


I light up the night but I’m not the Sun — I wax and wane but harm no one.

The Moon

I’m full of gas, have rings so wide — people say I’m beauty in the sky.

Saturn

I’m the closest to the Sun and small in size — my rocky surface may surprise.

Mercury

I wear a red suit and have a stormy face — I’m the fourth in line and love the chase.

Mars

I shine so bright but I’m not a flame — I’m a ball of gas with a burning name.

A Star

I’m the giant with a red dot eye — a storm so big it never dies.

Jupiter

Though I’m not a planet anymore, I orbit just like one before.

Pluto

I come with tails and icy might — I zoom past Earth, then out of sight.

A Comet

I’m a group of stars you like to trace — hunters, bears, and other shapes.

Constellation

I mark the path that planets tread — a belt of rocks, just up ahead.

Asteroid Belt

Invisible I might seem to you — but I bend all light and matter too.

Black Hole

No air, no sound, and very wide — I’m where all the planets reside.

Outer Space

I glow at night, sometimes green or red — I’m solar wind in Earth’s sky spread.

Aurora (or Northern Lights)

Though tiny dust I may appear — I’m what causes stars to disappear.

Nebula

I’m the line where night and day meet — slicing Earth in a steady beat.

The Terminator Line

I orbit planets big and small — I reflect their light and sometimes fall.

Moon

I’m the time it takes to spin once ‘round — for a planet, that’s a day I’ve found.

Rotation

I’m a ball of ice with a shining tail — past the planets, I set sail.

Comet

I’m born from stars that collapse and cry — exploding brightly in the sky.

Supernova

I’m the home to stars galore — spiral arms and so much more.

Galaxy

I pull the oceans to and fro — thanks to me, tides come and go.

The Moon

I’m not alive but I can grow — though once a rock, I now may glow.

Meteor (or Shooting Star)

I’m Earth’s twin but deadly hot — with clouds of acid and a boiling pot.

Venus

I mark the line between sky and land — yet in space, I’ve no real stand.

Horizon

That’s all for our Galaxy Riddles! If you’re up for another challenge, click below to discover more tricky riddles!

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Filed Under: Riddles Tagged With: Astronomy Riddles, best riddles, easy riddles, fun riddles, funny riddles, hard riddles, kids riddles, riddles, riddles for adults, riddles for kids, riddles with answers

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