Raised ridges spidering across the floor of a Martian crater were likely created by runoff from a long-lost glacier that once draped the planet’s southern highlands. Credit: NASA An ancient crater lake in the southern highlands of Mars appears to have been fed by glacial runoff, bolstering the idea that the Red […]

Japan’s Hayabusa2 spacecraft snapped pictures of the asteroid Ryugu while flying alongside it two years ago. The spacecraft later returned rock samples from the asteroid to Earth. Credit: JAXA Rocks on Ryugu, a “rubble pile” near-Earth asteroid recently visited by Japan’s Hayabusa2 spacecraft, appear to have lost much of their […]