We are polluting space just like we are polluting the land and sea. Some of the parts of spaceships are just left in space. Things like parts used to land on planets just stay in space and continue to pollute space. We can help by creating spaceships that can last forever. 

We can use materials that will last forever. We can also help the pollution by making sure all parts connect before the spaceship enters Earth's atmosphere again.

I hope we can try our best to make Earth and space a better and cleaner place.