A bus-size asteroid is racing through space on a trajectory that will bring it close to Earth, and NASA is watching it with ...

The space rock is hurtling through our cosmic backyard at a zippy 26,200 miles per hour, according to the space agency.

A small asteroid could strike the Moon in 2032, sparking moonquakes, glowing craters and meteor showers, while scientists debate whether to stop it or watch a rare cosmic experiment unfold.