Astronomers have spotted a large asteroid destined to whizz unusually ... the distance from the Earth to the Moon. At its closest point at 19:50 UTC (15:50 EDT) on March 25 it will get to within ...

An asteroid will hit Earth at some point. What can we do about it? — How many potentially dangerous asteroids narrowly miss Earth each year? The team analyzed carbon and oxygen isotopes in more ...

And it all starts tonight. The Quadrantid meteor shower peaks tonight (Jan. 2) and on Jan. 3, according to NASA. The Quadrantids, which peak in early January each year, are considered to be "one of ...