Planetary defense has moved from science fiction to a live engineering problem, and the stakes could not be higher. The ...

On its way to Didymos and Dimorphos, Hera has found time to test its cameras in preparation for the big moment. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

The spacecraft, bound for a metallic asteroid, turned to snap a striking image of our home planet from 180 million miles away. When you purchase through links on our site, we may earn an affiliate ...

Almost a year ago, the space science community watched as an asteroid entered Earth's orbit and circled above our heads for almost two months before departing. Scientists usually track such asteroids ...