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Akatsuki

Akatsuki was JAXA's mission to investigate the dynamics, cloud structure, composition, lightning, airglow, and vertical structure of Venus's atmosphere. The mission recovered from a failed 2010 orbit-insertion attempt and began sustained observations after reaching an elliptical Venus orbit in December 2015.

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Identity

Aliases
PLANET-CVenus Climate Orbiter
Name
Akatsuki
Status
completed

Details

Astronauts
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Description
Akatsuki was JAXA's mission to investigate the dynamics, cloud structure, composition, lightning, airglow, and vertical structure of Venus's atmosphere. The mission recovered from a failed 2010 orbit-insertion attempt and began sustained observations after reaching an elliptical Venus orbit in December 2015.
End Date
2025-09-18
Launch Site
Outcome
Akatsuki became Japan's first planetary orbiter beyond Earth and returned more than eight years of Venus atmospheric observations, including major results on planetary-scale waves and the maintenance of super-rotation. Communications were lost in late April 2024, and JAXA formally ended operations on September 18, 2025 after unsuccessful recovery work.
Start Date
2010-05-21
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Creation Time
July 30, 2026 at 03:49:34 UTC
Updated Time
July 30, 2026 at 03:49:34 UTC

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