ScienceNASA completes largest survey of dusty debris surrounding stars Giant disks of dust around distant stars may be evidence of unseen planets, astronomers say. Hubble completes high-resolution survey of such dusty cosmic rings.by Jim Algar
ScienceNASA's Hubble Space Telescope spots ghost light from stars of long-dead galaxies in Pandora's Clusterby Aaron Mamiit
ScienceNASA preps for Comet Siding Spring's Mars flyby: Why scientists are going gaga over itby James Maynard