Transcript for Space Watch
To a view of the earth and that giant ring around you can see they're behind me that's the ring of debris and tonight new -- -- the air force. Is starting what some are calling a sort of neighborhood watch and space because of it. Here's ABC's -- send out. You can't see it from the ground but first -- is a messy graveyard of space junk. That giant field of rubble crowded with more than 22000. Pieces larger than four inches across fragments of old rockets exploded fuel tanks. Even defunct spacecraft like this one in 2009 it destroyed another satellite. This year the air force will launch two new tracking satellites to help keep an eye on the growing constellation of space junk. But the satellites will also keep an eye on spacecraft from other nations what the general in charge calls a sort of neighborhood watch in space. All that space junk is also a danger to astronauts living on the space station. Three times a day the US military updates mission control on possible threats. Hoping to -- Hollywood disasters like this one from gravity space. Also on the table cutting edge missions designed to clean up orbital clutter. This craft would trap debris in a giant net but making space safer is technically challenging and very expensive. For now explores will simply keep dodging the danger Clayton -- LA BC news Denver.
This transcript has been automatically generated and may not be 100% accurate.