Kaboom! The Beginning Earth's continents were created by giant meteor impacts, according to a group of scientists studying ancient rock formations in Australia. Coauthor Tim Johnson said in a stat… [+1333 chars]
Uninspired by the dull scientific numbering of exoplanets? Well, here's your chance to name an alien world and its host star by connecting them to human cultures. To mark the 10th anniversary of its… [+2249 chars]