SDSS1102+2054 (IMAGE) University of Warwick Caption Sloan Digital Sky Survey spectroscopy of this inconspicuous blue object -- SDSS1102+2054 -- reveals it to be an extremely rare stellar remnant: a white dwarf with an oxygen-rich atmosphere Credit The Sloan Digital Sky Survey Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.