The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, evolution, and current structure of the outer solar system.

Scientists are almost sure that there is a ninth planet. But a study by Japanese astronomers hints that this might not be true. A new cosmic body called a sednoid has been discovered near the Kuiper ...

The Gemini North telescope and Subaru Telescope have been used to discover most distant merging quasars yet, "seen over 900 ...