This is how the primordial Earth looked — right after the…

This stunning, lava-saturated painting by science artist Richard Bizley is a portrait of one of the most devastating disasters ever to befall planet Earth (click to enlarge). During the early days of our solar system, astronomers speculate that a protoplanet about the size of Mars smashed into the Earth, launching so… » 1/09/13 5:00pm 1/09/13 5:00pm

New Theory: A "Hit and Run" Accident Created Our Moon

How did Earth get its own Moon? For decades, the most popular origin story has been the "Big Splat" theory, which says an object the size of Mars impacted the Earth more than three billion years ago, flinging material into space which became the Moon. » 7/31/12 9:00am 7/31/12 9:00am

The collision that created Earth's Moon is reenacted around an alien…

NLTT 43806 is a white dwarf, the dying remnants of a star like our own. But there's a problem. Its composition doesn't make any sense...unless there was a cataclysm just like the one Earth experienced four billion years ago. » 8/14/11 9:30am 8/14/11 9:30am