On Earth, river erosion is usually a slow-going process. But on Mars, massive floods from overflowing crater lakes had an outsized role in shaping the Martian surface, carving deep chasms and moving vast amounts of sediment, according to a new study led by researchers at The University of Texas at Austin.
As we prepare for long-term space travel or even life on other planets, one of the biggest challenges is how to eat in space. On Earth, plants benefit from nitrogen-fixing bacteria that live in the soil. Now, a recent discovery on the International Space Station (ISS) suggests nitrogen-fixing bacteria could help plants in space, too.