Space Science Reviews

, Volume 208, Issue 1–4, pp 3–16 | Cite as

Hayabusa2 Mission Overview

  • Sei-ichiro Watanabe
  • Yuichi Tsuda
  • Makoto Yoshikawa
  • Satoshi Tanaka
  • Takanao Saiki
  • Satoru Nakazawa


The Hayabusa2 mission journeys to C-type near-Earth asteroid (162173) Ryugu (1999 JU3) to observe and explore the 900 m-sized object, as well as return samples collected from the surface layer. The Haybusa2 spacecraft developed by Japan Aerospace Exploration Agency (JAXA) was successfully launched on December 3, 2014 by an H-IIA launch vehicle and performed an Earth swing-by on December 3, 2015 to set it on a course toward its target Ryugu. Hayabusa2 aims at increasing our knowledge of the early history and transfer processes of the solar system through deciphering memories recorded on Ryugu, especially about the origin of water and organic materials transferred to the Earth’s region. Hayabusa2 carries four remote-sensing instruments, a telescopic optical camera with seven colors (ONC-T), a laser altimeter (LIDAR), a near-infrared spectrometer covering the 3-μm absorption band (NIRS3), and a thermal infrared imager (TIR). It also has three small rovers of MINERVA-II and a small lander MASCOT (Mobile Asteroid Surface Scout) developed by German Aerospace Center (DLR) in cooperation with French space agency CNES. MASCOT has a wide angle imager (MasCam), a 6-band thermal radiator (MARA), a 3-axis magnetometer (MasMag), and a hyperspectral infrared microscope (MicrOmega). Further, Hayabusa2 has a sampling device (SMP), and impact experiment devices which consist of a small carry-on impactor (SCI) and a deployable camera (DCAM3). The interdisciplinary research using the data from these onboard and lander’s instruments and the analyses of returned samples are the key to success of the mission.


Hayabusa2 Ryugu Near-Earth asteroid Sample return mission Formation of the solar system Aqueous alteration 


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Copyright information

© Springer Science+Business Media Dordrecht 2017

Authors and Affiliations

  • Sei-ichiro Watanabe
    • 1
    • 2
  • Yuichi Tsuda
    • 2
  • Makoto Yoshikawa
    • 2
  • Satoshi Tanaka
    • 2
  • Takanao Saiki
    • 2
  • Satoru Nakazawa
    • 2
  1. 1.Dept. of Earth & Planetary SciencesNagoya UniversityNagoyaJapan
  2. 2.Institute of Space and Astronautical ScienceJapan Aerospace Exploration AgencySagamiharaJapan

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