Seth Borenstein WASHINGTON – Upon further review, a big scary-sounding asteroid is no longer even a remote threat to smash into Earth in about 20 years, NASA says. Astronomers got a much better look at the asteroid when it whizzed […]
Seth Borenstein WASHINGTON – Upon further review, a big scary-sounding asteroid is no longer even a remote threat to smash into Earth in about 20 years, NASA says. Astronomers got a much better look at the asteroid when it whizzed […]