Scientists trying to work out whether a star exploded and the resulting debris crashed into Earth 10 million years ago may be one step closer to solving the mystery. They discovered an unusual amount ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...

Add Yahoo as a preferred source to see more of our stories on Google. New research finds shocked quartz at key sites, strengthening the case for a comet airburst during Ice Age extinctions. (CREDIT: ...

Earth was hit by a huge burst of gamma rays originating from a star nearly 2 billion lightyears away, according to the European Space Agency. The gamma ray burst caused a disturbance in Earth's ...