Robots, astronauts and asteroids
Tuesday, May 24, 2011 - 12:00
in Mathematics & Economics
(PhysOrg.com) -- NASA has its sights set on asteroid exploration, which is just as tricky as it sounds. An asteroid has little gravitational force, which rules out walking on one. Anchoring to the surface is a solution, but because an asteroid comprises so many different materials even that is a challenge.