Astronomers discover an oversized black hole population in the star cluster

An international team of astronomers show that distinguishing features of Palomar 5 star cluster are likely the result of an oversized black hole population of more than 100 black holes in the center of the cluster.

A cosmic winter wonderland

Although there are no seasons in space, this cosmic vista invokes thoughts of a frosty winter landscape. It is, in fact, a region called NGC 6357 where radiation from hot, young stars is energizing the cooler gas in the cloud that surrounds them.

Ninety-six star clusters discovered hidden behind dust of Milky Way

  • 4 Aug 2011

Astronomers have discovered 96 new open star clusters hidden by the dust in the Milky Way. These tiny and faint objects were invisible to previous surveys, but they could not escape the sensitive infrared detectors of the world