At morning twilight on December 13, 2025 (Hawaii-Aleutian Standard Time, HAST), the Faint Object Camera and Spectrograph ...

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 ...

During the telescope and instrument recovery works from the Hurricane Lane in August 2018, it was found FOCAS optics is severely contaminated by rain water, and the water penetrated into the inside of ...

Subaru Telescope’s advanced Prime Focus Spectrograph (PFS) has been given a new Hawaiian name, ʻŌnohiʻula. This name ...

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 ...

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 National Astronomical Observatory of Japan (NAOJ) and The Asahi Shimbun Company installed an ultra-high sensitivity camera on the Summit Facility of the Subaru Telescope to livestream the night ...

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 ...

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, ...

An international team of astronomers has solved one of the longstanding cosmic mysteries by uncovering direct evidence of a massive, long-lost object that collided with the Perseus cluster. Using high ...

An international team of astronomers has discovered a tightly packed cluster of supermassive black holes dating back 10.8 billion years―the most extreme concentration of such objects ever found in the ...

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.