Jupiter's moon smells like giant rotten eggs

New mega-telescope sets sights on devastating asteroids

First lunar art smuggler sought by historians

Seventh-graders find a cave on Mars

Strange new planets discovered in bizarre new worlds

Dark energy and dark matter may not exist after all

Life's first energy source discovered

Man accused of stealing Sally Ride's flight suit, among other collectibles

Spectacular images of other galaxies as viewed by Hubble

NASA flies recycled spacecraft by Earth and comet

4.5 billion-year-old meteorite found in Oregon

Backward-moving black holes are more powerful