Rookie crewmates kept things fresh for Ax-4 astronaut Peggy Whitson: ‘It’s always great to relive a little bit of that first time’ >
Einstein was wrong (slightly) about quantum physics, new version of the famous double-slit experiment reveals >
Nearby super-Earth K2-18 b may be a water-rich ocean planet: ‘This has certainly increased the chances of habitability’ >
Smithsonian National Air and Space Museum reopens 5 renovated galleries starring SpaceX rocket parts, a 3D-printed Mars habitat and more >