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Missions and Programs

Akatsuki Mission

Robotic Venus Exploration Missions

A JAXA robotic mission to study the atmosphere and climate of Venus, launched on 20 May 2010. The spacecraft failed to enter Venus orbit on its first attempt in December 2010 due to an engine malfunction, but after five years orbiting the Sun, engineers successfully placed it into an alternate elliptical Venus orbit on 7 December 2015 using its attitude control thrusters, becoming Japan's first successful mission to another planet. Akatsuki returned atmospheric data until contact was lost in April 2024, with operations formally terminated in September 2025.

Facts
Mission Type
Robotic Venus atmosphere orbiter mission 1
Launch Date
2010-05-20 1
End Date
2025-09-18 2
Outcome
Successful after an initial failed orbit-insertion attempt; returned Venus atmospheric data for over eight years before contact was lost in April 2024 and operations were formally terminated in September 2025. 1
Mission Type
Mission Type (category)
Orbiter 1
Mission Type (category)
Robotic / Uncrewed Mission 1
Connections

Operated By

Source Wikipedia (space and spaceflight articles)
Additional Source Akatsuki (spacecraft) (Wikipedia)Wikipedia: Akatsuki (spacecraft), lead section

Spacecraft Of

Akatsuki, Spacecraft
Source Akatsuki (spacecraft) (Wikipedia)
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia Foundation
2. Akatsuki (spacecraft) (Wikipedia)
  • Infobox, declared
    18 September 2025
  • Wikipedia: Akatsuki (spacecraft), lead section
    After the craft orbited the Sun for five years, engineers successfully placed it into an alternate Venusian elliptic orbit on 7 December 2015.
  • Includes: Akatsuki, Lead paragraph, part-of
    Akatsuki (あかつき, 暁; "Dawn"), also known as the Venus Climate Orbiter (VCO) and Planet-C, was a Japan Aerospace Exploration Agency (JAXA) space probe tasked with studying the atmosphere of Venus.
  • Spacecraft Of: Akatsuki, Lead paragraph, mission-of
    Akatsuki (あかつき, 暁; "Dawn"), also known as the Venus Climate Orbiter (VCO) and Planet-C, was a Japan Aerospace Exploration Agency (JAXA) space probe tasked with studying the atmosphere of Venus.
  • In Group: Venus Probe Programs, Lead sentence
    Akatsuki (あかつき, 暁; "Dawn"), also known as the Venus Climate Orbiter (VCO) and Planet-C, was a Japan Aerospace Exploration Agency (JAXA) space probe tasked with studying the atmosphere of Venus.
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