Nasa Hubble Space Telescope Shows The Spiral Galaxy Ngc 4603 The Most Distant Galaxy In Which A S

A Nasa Hubble Space Telescope Shows The Spiral Galaxy Ngc 4603, The Most Distant Galaxy In Which A Special Class Of Pulsating Stars Called Cepheid Variables Have Been Found. It Is Associated With The Centaurus Cluster, One Of The Most Massive Assemblages Of Galaxies In The Nearby Universe. The Universe Is A Youthful 12 Billion Years Old -- Not 20 Billion, As Astronomers Once Believed -- And That Is Old Enough To Support The Theory That The Big Bang Started It All, Scientists Said Tuesday. (Photo By Nasa/Getty Images)