Comets are natural "time capsules," preserving ice and dust from the birth of the Solar System 4.6 billion years ago. Yet the ...
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 ...
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 ...
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 ...
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 ...
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 ...
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), ...
NSF–DOE Vera C. Rubin Observatory has officially begun full operations for the Legacy Survey of Space and Time (LSST), one of the world's largest astronomical imaging surveys. Behind the scenes, ...
ベラ・C・ルービン天文台は、今後 10 年間にわたって南天の空を繰り返し観測する世界最大級の撮像探査プロジェクト「LSST（Legacy Survey of Space and Time）」の本格運用を開始しました。その舞台 ...
The National Astronomical Observatory of Japan (NAOJ) has released a major update to the Hyper Suprime-Cam Legacy Archive (HSCLA), making publicly available a uniquely comprehensive astronomical ...
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