Tuesday, April 25, 2006

Black Holes, Good Times Images: Black holes extremely energy-efficient. Scientists have found black holes to be the most efficient "engines" in the universe. [CNET News.com] 9:46:18 PM

E Black holes are fuel-efficient. One billion miles per gallon -- that's how far a car could travel if it were powered by a typical black hole. Scientists with NASA's Chandra X-ray Observatory recently arrived at this estimate after determining black holes are the most fuel-efficient "engines" in the universe, a discovery that highlights a black hole's economical performance and its benefits. read more [Science Blog -] 6:58:34 PM

Sedna and the Binary Research Institute Evidence mounts for sun's companion star. The Binary Research Institute (BRI) has found that orbital characteristics of the recently discovered planetoid, "Sedna", demonstrate the possibility that our sun might be part of a binary star system. A binary star system consists of two stars gravitationally bound orbiting a common center of mass. Once thought to be highly unusual, such systems are now considered to be common in the Milky Way galaxy. read more [Science Blog -] 6:44:37 PM