Lab experiments explore origins of gullies on Asteroid Vesta

Los Angeles CA (SPX) Dec 23, 2024

The rugged surface of asteroid Vesta, studied extensively by NASA's Dawn mission, features craters and mysterious gullies whose formation has puzzled scientists. These deep channels, previously hypothesized to result from debris flows driven by meteoroid impacts and temperature changes, are now thought to involve a surprising factor: brief flows of water. A recent NASA-funded study, publis