Did you know there's a whole host of man-made objects, floating around thousands of miles away in space?
Known as "space junk", they're orbiting the Earth at this very moment. In fact, space agencies in the USA and Russia recently estimated that it could be getting a bit cramped out there, with trillions of tiny pieces of the stuff!
Space junk covers all sorts of things, such as items leftover from previous space missions, objects sent up into space from Earth and even some momentos that astronauts have left behind.
Our friends at Solar Centre have put together these seriously cool facts on just what is floating around out there, from family photos to pieces of LEGO, we investigate the weird and wonderful world of space junk!
Believe it or not, this really is floating around in space. If aliens found it, we wonder what they'd make of it...
Yup, sadly, a little bit like animal testing but in space travel terms, during the 1940s - 60s many animals were sent up into the Earth’s atmosphere to see if it was safe for life to survive in space.
Can you imagine three little LEGO pieces taking off on a space mission? Because that's exactly what happened. Cool!
You'll have to watch your step while floating around in space, because you wouldn't want to step on one of these!
Yes. The very man that created Star Trek had a portion of his ashes sent into space after his death, and this year, his wife's will be sent up to join him.
Galaxies eat each another? Who'd have thought it?
Imagine you're an alien and it's really tricky to get a pizza delivery. Cue Pizza Hut, who send a salami pizza out into the midst of space in 2001. They must have been over the moon - literally!
That's right, a £650,000 bag of tools is just floating around in space - they must be some seriously pricey pliers!
Now that's a fact for the playground!
Space junk is orbiting the Earth right now, and travelling at speeds of over 17,000 miles per hour!
We've all heard of the face on the moon but this is just getting silly...
Those footprints have been there since 1969!
Imagine being so famous that you have an asteroid named after you - that's exactly what happened to American filmstars Tom Hanks and Meg Ryan!
Good job there's no fine for littering in space, hey?
Getting access to fresh veg in space can prove a little tricky, so astronauts are now growing their own in order to get their five-a-day!
Blimey, that's one cosmic cloud!
Well, when you've gotta go, you've gotta go!
A planet made of diamonds, you say? Get us a spaceship, and quick!