Add Yahoo as a preferred source to see more of our stories on Google. This May 18, 1969 photo made available by NASA shows Earth from 36,000 nautical miles away as photographed from the Apollo 10 ...

The amount of sunlight that Earth reflects back into space — measured by the dim glow seen on the dark portions of a crescent moon’s face — has decreased measurably in recent years. Whether the ...

CAPE CANAVERAL, Fla. (AP) — Whew, now here’s some good cosmic news: NASA has given Earth the all clear for the next century from a particularly menacing asteroid.