Ghosts of the future: First giant structures of the universe hold 800 trillion suns
Wednesday, October 13, 2010 - 13:31
in Astronomy & Space
Astronomers using the South Pole Telescope report that they have discovered the most massive galaxy cluster yet seen at a distance of seven billion light-years. The cluster (designated SPT-CL J0546-5345) weighs in at around 800 trillion suns, and holds hundreds of galaxies.