New Evidence Emerges In Support Of Double Asteroid Impact Theory

Nearly 15% of all asteroids travel in pairs, yet very few impact craters on Earth have been identified as "doublets" — dual craters arising from sudden back-to-back impacts. But a new analysis has identified a potential candidate in Sweden, the product of a binary pair striking the Earth some 458 million years ago. »3/19/14 12:10pm3/19/14 12:10pm


What created such enormous craters on the Moon's nearside?

Earth's moon has been blasted by a lot of space rocks in its 4.5-billion-year history. While these impacts have left a near-uniform distribution of craters across our satellite's surface, planetary scientists have shown that one of its sides – the side that faces Earth – bears significantly larger scars than the… »11/07/13 3:58pm11/07/13 3:58pm