Subaru Telescope Detects the Shadow of a Gas Cloud in an Ancient Proto-supercluster
March 28, 2017
By using the Suprime-Cam on the Subaru Telescope, a team led by researchers at Osaka Sangyo University succeeded in making the widest map of neutral hydrogen gas in the early universe (corresponding to a time about 11.5 billion years ago). They found that the neutral hydrogen gas widely spreads out across 160 million light-years in and around the proto-supercluster...
Saturn's Rings Viewed in the Mid-infrared Show Bright Cassini Division
February 23, 2017
A team of researchers has succeeded in measuring the brightnesses and temperatures of Saturn's rings using the mid-infrared images taken by the Subaru Telescope in 2008. The images are the highest resolution ground-based views ever made. They reveal that, at that time, the Cassini Division and the C ring were brighter than the other rings in the mid-infrared light and that the brightness contrast appeared to be the inverse of that seen in the visible light...