miercuri, 7 aprilie 2010

Asteroid Alert: Infrared Space Observatory Predicted to Find 100,000 'Dark' Objects

- WISE, NASA's Wide-field Infrared Survey Explorer, to search for "dark" objects in space like brown dwarf stars, vast dust clouds, and Earth-approaching asteroids. WISE finds them by sensing their heat in the form of infrared light most other telescopes can't pick up. Full story:

* NASA: Sun’s Nemesis Pelted Earth with Comets, Study Suggests… - Astrobiology Magazine - 03/11/10 - (is a NASA-sponsored online popular science magazine) - Getting WISE About Nemesis - Summary: 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: