According to the space agency's tracking, the rock is hurtling through space at more than 21,500 miles per hour.
Here's what scientists have now learned about the DART mission.
If an asteroid is on a collision course with the moon, what should humanity do? Try to nudge the space rock out of the way before it strikes? Obliterate it with a nuclear explosion? Such a cosmic ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results