Distant supernova discovery, 9 billion years ago
Wednesday, January 11, 2012 - 16:30
in Astronomy & Space
NASA's Hubble Space Telescope has looked deep into the distant universe and detected the feeble glow of a star that exploded more than 9 billion years ago. The sighting is the first finding of an ambitious survey that will help astronomers place better constraints on the nature of dark energy: the mysterious repulsive force that is causing the universe to fly apart ever faster.