Litter in a Surprising Place
There’s so much trash out there in space that it’s getting in the way of astronaut operations. The solution? ZAP it! The US military currently tracks about 20,000 items of space junk in low-Earth orbit, most of which are discarded pieces of spacecraft or debris from collisions of satellites. The Earth could even end up with a permanent junk belt that could make space too dangerous to fly in. In Wired.com, Lisa Grossman quotes NASA engineer Creon Levit as saying, "There’s not a lot of argument that this is going to screw us if we don’t do something. Right now it’s at the tipping point, and it just keeps getting worse." read more