More than 1,200 years ago, intense bursts of charged particles slammed into Earth. Yet, the only remaining evidence of the extreme cosmic event — which scientists say should have been visible in ...

"An asteroid this size impacts Earth on average every few thousand years and could cause severe damage to a local region," the European Space Agency said in a statement. By New Year's Eve ...

Last year was the hottest year on record, the top 10 hottest years were all in the past decade and planet-heating carbon ...

It was discovered two days later. Chodas said scientists ... more observations,” he said. Earth gets clobbered by an asteroid this size every few thousand years, according to ESA, with the ...