The odds are about 1% that the football field-sized object could hit the Earth, but that makes it the closest call in more than 20 years.

NASA scientists have discovered organic content in the samples recovered from the asteroid Bennu, which points back to the ...

An asteroid the size of two football fields will pass within 1.7 million miles of Earth on Friday at 11 miles per second. Although the 890-foot asteroid, “2008 OS7,” qualifies as possibly ...