The National Astronomical Observatory of Japan (NAOJ) has released a major update to the Hyper Suprime-Cam Legacy Archive ...

Subaru Telescope is an 8.2-meter optical-infrared telescope at the summit of Maunakea, Hawaiʻi, operated by the National Astronomical Observatory of Japan (NAOJ), National Institutes of Natural ...

For years astronomers have worried about how to explain why the Milky Way has fewer small companion satellite galaxies than the standard dark matter model predicts. Now new observations from the ...

The Subaru Telescope's wide and deep imaging observations are contributing information to the New Horizons spacecraft as it moves through the outer Solar System. By applying a unique analysis method ...

The Subaru Telescope has started a new outreach camera project in collaboration with the Asahi-Shimbun, one of the most popular newspapers in Japan. This camera is used for live streaming of the night ...

An international research team led by scientists at Waseda University and Tohoku University has discovered an extraordinary quasar in the early Universe that hosts one of the fastest-growing ...

The discovery of two remarkable substellar companions orbiting distant stars has been announced by an international team of astronomers using the Subaru Telescope’s sharp adaptive-optics imaging ...

In our Milky Way Galaxy, the most common type of stars is small, cool stars known as M dwarfs, or red dwarfs. They make up more than half of the all stars in our Galaxy. Because M dwarfs are ...

The Subaru Telescope has revealed a fourth member of the sednoids, a group of small bodies with peculiar orbits around the outer edge of the Solar System that includes Sedna. The new object, ...

Test observations using the next-generation adaptive optics system ULTIMATE-START, developed through collaboration between Tohoku University and the National Astronomical Observatory of Japan (NAOJ), ...

The Subaru Telescope observed the interstellar comet 3I/ATLAS on January 7, 2026 (UT), after it made its closest approach to the Sun. By observing colors in the coma around the comet, astronomers ...

Before dawn on March 3, 2022 (Hawai`i Standard Time), Subaru Telescope achieved the first launch of a new laser guide star system, upgraded and used for the Subaru Telescope’s adaptive optics system.