apr 122012
Astronomers Identify Nearby 12-Billion-Year-Old White Dwarfs

A University of Oklahoma assistant professor and colleagues have identified two white dwarf stars considered the oldest and closest known. Astronomers identified these 11- to 12-billion-year-old white dwarf stars only 100 light years away from Earth. These stars are the closest known examples of the oldest stars in the Universe forming soon after the Big [continue reading]