New Blow for Dinosaur-Killing Asteroid Theory

(PhysOrg.com) -- The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a paper to be published ...

How the moon formed: New research sheds light on what happened

How the Earth got its moon is a long debated question. The giant impact theory – which states that the moon formed from the a collision between the early Earth and a rocky body called Theia—has become the front runner ...

Moon maps, lunar origins and everything between

The moon's consistent appearance in the sky each night may lull earthlings into a sense of familiarity, but the moon is actually a puzzling place. It lacks an atmosphere and is bone-dry; it can hardly claim a central iron ...