YR4 was initially discovered late last year and is believed to measure between 130 and 300 feet across, comparable to the ...
NASA and other space agencies are attempting to come up with a way to destroy a massive asteroid unlikely to strike Earth.
Could an asteroid hit Earth in 2032? NASA says there's a chance, but the odds keep changing. We asked two experts to break it ...
NASA awarded SpaceX a $100 million contract to launch a new satellite that could monitor extraterrestrial threats to the ...