The largest asteroid to pass by Earth this year will approach within about 1.25 million miles (2 million kilometers) of our planet on March 21, the National Aeronautics and Space Administration (NASA) said Thursday.
The largest asteroid to pass by Earth this year will approach within about 1.25 million miles (2 million kilometers) of our planet on March 21, the National Aeronautics and Space Administration (NASA) said Thursday.