The billionaire has called for humans to reach the Red Planet to check an unusual rock formation SpaceX CEO Elon Musk has called for astronauts to be sent to Mars to investigate a peculiar square structure observed on the planet’s surface that has recently generated much public discussion. On Friday, Musk responded to a post on X by podcast host Joe Rogan, who shared images from NASA’s Mars Global Surveyor showing a square-like formation on Mars. “We should send astronauts to Mars to