Discover NASA's Space Fence, a billion-dollar system designed to prevent collisions and monitor space junk.
Best of Earth Lab: http://bit.ly/EarthLabOriginals
Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos
The Doctors Are In The House: http://bit.ly/TheDoctorsAreInTheHouse
Horizon: Space Junk
Our planet is surrounded by hundreds of millions of pieces of junk moving at 17,000 miles per hour. Now the US government is investing a billion dollars to track them, and companies around the world are developing ways to clear up their mess.
Welcome to BBC Earth Lab! Here we answer all your curious questions about science in the world around you (and further afield too). If there's a question you have that we haven't yet answered let us know in the comments on any of our videos and it could be answered by one of our Earth Lab experts.
Want to share your views with the team? Join our fan panel: http://tinyurl.com/YouTube-BBCEarth-FanPanel
This is a channel from BBC Studios who help fund new BBC programmes.Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx