Astronaut Barry "Butch" Wilmore is leaving NASA after a quarter-century of service. Wilmore spent a total of 464 days off Earth during his three spaceflights.
Chinese scientists have developed a remarkable machine that could revolutionize how humans build structures on the Moon. The device works like a 3D printer powered by concentrated sunlight, turning lunar soil (known as regolith) into strong construction bricks without needing any materials from Earth.