Data from OSIRIS-REx reveals loose surface of asteroid Bennu and early aging of asteroids nasaspaceflight.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nasaspaceflight.com Daily Mail and Mail on Sunday newspapers.
Scientists from Nasa's OSIRIS-REx have found that the Sun's heat fractures rocks on Bennu in just 10,000 to 100,000 years, revealing that surface regeneration happens a lot quicker on asteroids than on Earth.
Delbo and his colleagues measured the length and angles of more than 1,500 fractures in OSIRIS-REx images by hand: some shorter than a tennis racket, others