Scientists Used The Estimated Ages Of 250,000 Stars, Known As Sub-Giants, In The Milky Way To Determine That Part Of Our Galaxy, Associated With The Thick Disk, Is 2 Byrs Older Than Earlier Thought. The Stars’ Ages Indicate That The First Phase Of Star Formation Started ~800 Myrs After The Big Bang But Accelerated 2 Billion Years Later.
Part of the Milky Way is around 2 billion years OLDER than previously thought, astronomers claim | Daily Mail OnlineThe surprising result came from analysis by astronomers Maosheng Xiang and Hans-Walter Rix, from the Max-Planck Institute for Astronomy, Heidelberg, Germany.