NASA has released new 4K HiRISE footage revealing unexpected features shifting across dune fields on both Mars and Earth. The imagery shows patterns that appear to move, expand, or reshape at rates ...

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could crater existing Red Planet research missions.

NASA’s interim administrator, Sean Duffy, was fired up on Wednesday when he joined a teleconference to talk about new scientific findings that concerned the potential for life to have once existed on ...