A Startling Image That Shows Why Space Junk is a Nightmare

If you saw the movie Gravity, then you know that space debris can be deadly. Some scientists warn that the crud in Earth's orbit may have reached a dangerous "tipping point." But to prove the point, here's an image from artist Michael Najjar that shows every single piece of real-life junk in our orbit. » 12/31/13 12:30pm 12/31/13 12:30pm