The deep 3 - D map also
revealed young galaxies that existed as early as 12.5 billion years ago (at less than 10 percent of the current universe age), only a handful of which had previously been found.
Not exact matches
But new observations from NASA's Hubble Space Telescope have
revealed ancient stars mingled with the
young ones, proving the
galaxy as a whole is in fact as old as its neighbors.
A clash among members of a famous
galaxy quintet
reveals an assortment of stars across a wide color range, from
young, blue stars to aging, red stars