Technology Review: In 1978, the NASA scientist Donald Kessler predicted that a collision between two pieces of space junk could trigger a cascade of further impacts, creating dangerously large amounts of debris.
The asteroid zoomed by Earth at a perfectly safe distance of around 1.8 million miles (2.9 kilometers).
Engineers expect to lose contact with the private US moon lander Odysseus on Tuesday, cutting short the mission after its sideways touchdown last week.
NASA announced Tuesday that a $32.7 million Capstone spacecraft intended to try out a skewed lunar orbit had lost contact, but agency engineers are confident
cool at last they working on something that will save our planet in 2012 LOL
What they're really developing is a laser to destroy Apophis!