In this image made available by NASA on Thursday, Oct. 27, 2022, boulder-size blocks of water ice are seen around the rim of an impact crater on Mars, as viewed by the High-Resolution Imaging Science Experiment (HiRISE camera) aboard NASA's Mars Reconnaissance Orbiter. [AP Photo]
Two NASA spacecraft at Mars - one on the surface and the other in orbit - have recorded the biggest meteor strikes and impact craters yet.