According to astronomers led by Dr Anna Frebel from Massachusetts Institute of Technology, an ultra-faint dwarf galaxy called Segue-1 may be one of first ever formed. This image shows member stars of the ultra-faint dwarf galaxy Segue-1. Image credit: Marla Geha. Discovered in 2007, Segue-1 is one of about two dozen small satellite galaxies orbiting our Milky Way Galaxy. Segue-1 lies in the constellation Leo, about 75,000 light-years away from Earth....
