ScienceESA's Rosetta spacecraft on schedule for date with comet on Wednesday ESA's Rosetta spacecraft will come face to face with Comet 67P/Churyumov-Gerasimenko on Aug. 6. The probe will become the first ever to orbit the nucleus of a comet, as well as deliver a lander.by Anu Passary
ScienceEurope sends its last supply ship to space station, marks beginning of the endby Rebecca Kaplan
ScienceMysterious X-ray signal 240 million light years away may indicate dark matter presenceby Tina Shah
ScienceESA's Rosetta spots 800-mile long dust cloud of 67P/Churyumov-Gerasimenkoby Alexander Saltarin
SciencePair of supermassive black holes spotted in cosmic tango by European astronomersby Alexander Saltarin
ScienceESA launches Sentinel spacecraft from French Guinea, boosts Copernicus monitoring systemby James Maynard