Long ago, shooting stars were commonly thought to be omens ... It's a rock or a bit of sand or ice - space debris - that encounters Earth's atmosphere. There's lots of debris out there, and ...

The yellow spot shows the plastic on a beach that looks pretty clean on a normal satellite image from space Satellites are already used to track plastic waste but this tool produced by scientists ...

The challenge, which features two separate tracks, focuses on creating systems that will help minimize waste while improving sustainability in space environments. As NASA gears up for future human ...