... The Dark River to Antares . ... Connecting the Pipe Nebula to the bright star Antares is a flowing dark cloud nicknamed the Dark River. ... Giant Cluster Bends, Breaks Images . ... What are those strange blue objects? Many are images of a single, unusual, beaded, blue, ring-like galaxy which just happens to line-up behind a giant cluster of galaxies. Cluster galaxies here appear yellow and -- together with the cluster's dark matter -- act as a gravitational lens. ... Tonight: A Blue Moon . ...