ISAS | Institute of Space and Astronautical Science

Martian Moons eXploration (MMX)

X-Ray Imaging and Spectroscopy Mission (XRISM)

Smart Lander for Investigating Moon (SLIM)

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Oct 9, 2025ISAS GATE

ISAS Researchers Ranked Among the World's Top 2% Scientists in 2025 (Based on 2024 Statistics)

Oct 6, 2025Gallery

Between the Moon, Mars, and Deep Space ― The Future Drawn by UAE-Japan Cooperation

Sep 29, 2025Cosmos blog

A rebel alliance: the small mission collaboration between ESA and ISAS

Sep 19, 2025Cosmos blog

July 5: the day the world was due to end

Sep 18, 2025Topics

Venus Climate Orbiter "AKATSUKI" Operation Completed

Sep 18, 2025Topics

XRISM uncovers a mystery in the cosmic winds of change

Wormhole to the Research Forefront

JAXA Sagamihara Channel

AnnouncementsMore

Sep 19, 2025

Notice of Temporary Suspension of Websites [September 27-29] - Ended

Feb 7, 2025

Submission site for AO2025 for Ryugu and Bennu samples is now open.

Dec 11, 2024

Announcement of the selected proposals for the 5th Ryugu Sample AO

Current Missions

Sun Mercury Venus Earth Mars 1998 KY26 Torifune

A: XRISMLaunch(UTC):
Sep 6, 2023; ARASELaunch(UTC):
Dec 20, 2016; HINODELaunch(UTC):
Sep 22, 2006

B: MIO/BepiColomboLaunch(UTC):
Oct 20, 2018

C: HAYABUSA2Launch(UTC):
Dec 3, 2014

Mercury Magnetospheric Orbiter MIO / BepiColombo Martian Moons eXploration (MMX) Smart Lander for Investigating Moon (SLIM) X-Ray Imaging and Spectroscopy Mission (XRISM) Astromaterials Science Research Group (ASRG) History of Japanese Space Research