The Call for Proposals for Semester S26A received 157 submitted proposals for the Normal and Intensive Programs requesting a total of 444.92 nights. After screening by TAC, 93.13 (including 11ToO) ...

The Subaru Prime Focus Spectrograph (PFS) is a spectrograph system mounted at the prime focus of the Subaru telescope. Four identical spectrograph modules are fed by a total of ~2400 fibres, allowing ...

11月23日（日）に三鷹中央通り商店街で開催された、「第9回星マルシェ」にハワイ観測所がブースを初出展しました。 「天文台のあるまち三鷹」で行われる星マルシェは、星と宇宙を ...

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 ...

Researchers have finished equipping the Subaru Telescope with a new special "compound eye" culminating several years of effort. This new eye is an instrument featuring approximately 2,400 prisms ...

The Akamai Internship Program, Hawai`i's premier STEM workforce development initiative, is now accepting applications for its 2026 summer cohort. The program offers Hawai`i college students the ...

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 ...

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 ...

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 ...

The MBQ1 (Medium Band Quadrant) filter is newly opened for open-use observations in Semester S26A. If you wish to use this filter during the period of S26A through S27A, you must obtain an approval in ...