Heaps of rubbish in space could put Aliens off from visiting Earth.
Aliens could be thwarted from visiting Earth by space junk
It is said there are over 14,000 satellites in Earth's low orbit - almost half of which are from tycoon Elon Musk's Starlink network - and 120 million pieces of debris floating in space.
The amount of rubbish floating around and the potential for collisions could prevent space exploration unless nations and companies begin sharing data on a global scale.
This could ruin Musk's plans to get a million humans living on Mars by 2050.
Aarti Holla-Maini, director of the United Nations Office for Outer Space Affairs, said: "We have to do everything we can to ensure space safety.
"That means facilitating the sharing of information between operators, in order to avoid collisions."