Astronomers call it a rare chance to learn about life's origins
(Newser) -
We're just five days away from an aircraft-carrier-sized asteroid passing less than 202,000 miles from the Earth, a rare near-miss for an object this large, reports ABC News . The object called 2005 YU55 is a circular c-type asteroid—carbon-based, darker than charcoal, and the kind likely responsible for...