marți, 13 aprilie 2010

Comet eaten by the sun as spacecraft watches

- The destruction of a comet as it approached the sun was caught on camera Saturday by a long-lived space observatory. The comet, a stranger to astronomers, is now doomed to anonymous obscurity. Full story:

* NASA: Sun's Nemesis Pelted Earth with Comets, Study Suggests... Is our Sun part of a binary star system? An unseen companion star, nicknamed “Nemesis,” may be sending comets towards Earth. If Nemesis exists, NASA’s new WISE telescope should be able to spot it: