comet

A rare comet sighting, Bastille Day fireworks, and a sea lion cub round out this week's best images.
The bright green comet has arrived just in time for the holidays.
It's also been called "The Great Pumpkin" asteroid.
The captivating shot was taken from a farmer's field in Georgia.
“Images taken from this viewpoint are of high scientific value,” Holger Sierks, OSIRIS principal investigator from the Max
The 96-mile-wide crater that NASA's Curiosity rover has been exploring probably once held a vast lake.
In a remarkable development, scientists have received a message from deep space in which aliens want to know how and where they can get the bowling shirt of hot, scantily-clad women worn by Rosetta physicist Matt Taylor.