2013

• 2/21/2013 STScI-2013-07 1. Stellar Motions in Outer Halo Shed New Light on Milky Way Evolution Peering deep into the vast stellar halo that envelops our Milky Way galaxy, astronomers using NASA's Hubble Space Telescope have uncovered... (More)

2012

• 5/30/2012 STScI-2012-25 2. Stellar Archaeology Traces Milky Way's History Unfortunately, stars don't have birth certificates. So, astronomers have a tough time figuring out their ages. Knowing a star's age is critical for understanding... (More)