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Yamazaki Lab (Hisaki / SPRINT-A · Planetary Exploration)
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The lab explores the upper atmospheres and plasma around planets through ultraviolet observations.

AboutAbout the lab
Seeing the space around planets with invisible light.
Yamazaki Lab studies the upper atmospheres and plasma of Earth and other planets at the Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA).
The lab makes observations using instruments mounted on spacecraft that cover extreme ultraviolet to vacuum ultraviolet light.
The lab's work has two parts: analyzing data from the Planetary Spectroscopic Observatory "Hisaki" and the Venus probe "Akatsuki," and developing instruments for future ultraviolet observation missions.
Key terms
- extreme ultraviolet
- Ultraviolet light with an especially short wavelength, invisible to the eye. It does not reach the ground, so it is observed from space.
- upper atmosphere
- The thin atmosphere at very high altitudes on Earth or other planets, close to the boundary with space.
- plasma
- A state in which atoms separate into electrons and ions, with electrically charged particles flying around.
ResearchResearch themes
Using ultraviolet instruments mounted on spacecraft, the lab studies the distribution of the upper atmospheres and plasma of Earth, planets, and exoplanets, as well as natural phenomena related to the distribution of plasma throughout the solar system. The work covers analysis of observational data and development of spacecraft and instruments for future observations.
*Illustrative imageData Analysis for "Hisaki" and "Akatsuki"
The lab analyzes ultraviolet observation data from the Planetary Spectroscopic Observatory "Hisaki" and the Venus probe "Akatsuki." Hisaki is a satellite that observed Jupiter's magnetosphere and how the atmospheres of terrestrial planets such as Venus and Mars interact with the solar wind.
*Illustrative imageFuture Ultraviolet Observation Missions
To realize upcoming ultraviolet observation missions, the lab conducts research on developing spacecraft and the observation instruments mounted on them.
MembersFaculty
- Associate ProfessorAtsushi Yamazaki
VoicesStudent voices
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Seki LabFaculty of Science, Department of Earth and Planetary PhysicsSolar-planetary system physics, electromagnetosphere physics…The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Global view uvi Venus (Akatsuki)” Meli thev / CC BY 4.0 (cropped)
- Data Analysis for "Hisaki" and "Akatsuki": “Ultraviolet Aurora borealis on Jupiter from Hubble 1998” J. Clarke (Univ. Michigan), NASA / Public domain (cropped)
- Future Ultraviolet Observation Missions: “Hisaki-sprint-a-artistconcept2013” Nesnad / CC BY-SA 3.0 (cropped)
- Related lab (Namiki Lab (RISE Lunar and Planetary Exploration Study Office)): “PIA16587 - GRAIL's Gravity Field of the Moon” NASA/ARC/MIT / Public domain (cropped)
- Related lab (Amano Lab): “Supernova Remnant SN 1006” X-ray: NASA/CXC/Rutgers/G.Cassam-Chenaï, J.Hughes et al.; Radio: NRAO/AUI/NSF/GBT/VLA/Dyer, Maddalena & Cornwell; Optical: Middlebury College/F.Winkler, NOAO/AURA/NSF/CTIO Schmidt & DSS / CC BY 4.0 (cropped)
- Related lab (Saito-Shinohara Lab (Space Plasma Division)): “Aurora borealis over Eielson Air Force Base, Alaska” United States Air Force photo by Senior Airman Joshua Strang / Public domain (cropped)
- Related lab (Seki Lab): “Aurora Australis From ISS” ISS Expedition 23 crew / Public domain (cropped)
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