Comets are natural "time capsules," preserving ice and dust from the birth of the Solar System 4.6 billion years ago. Yet the ...
A large protocluster of galaxies that existed 12.6 billion years ago, first discovered with the Subaru Telescope, has been examined in detail using the James Webb Space Telescope (JWST). The study ...
Observations with the Euclid Space Telescope and ground-based facilities, including the Subaru Telescope, have led to the discovery of 31 quasars in the early Universe, powered by supermassive black ...
ユークリッド宇宙望遠鏡とすばる望遠鏡などの地上の望遠鏡を用いた観測から、初期宇宙に存在する 31 個の超巨大ブラックホール（クエーサー）が発見されました。そのうちの2天体は ...
彗星は約 46 億年前の太陽系誕生当時の物質を今に残す「タイムカプセル」と考えられています。しかし、本体である彗星核は太陽に近づくとガスや塵の雲（コマ）に覆われるため、地上から ...
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 ...
このプロジェクトは 文部科学省 大規模学術フロンティア促進事業の支援を受けています。
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 ...
SWIMS (Simultaneous-color Wide-field Infrared Multi-object Spectrograph) has been in development since 2009 for the 6.5-m telescope at the University of Tokyo Atacama Observatory (TAO) on the summit ...
Families, friends, and community members are invited to gather for an evening of Japanese culture, music, dance, science, and stargazing at the Tanabata Block Party 2026, happening Saturday, August 22 ...
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), ...
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