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Deep Earth Physics Lab
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A lab that explores the interiors and magnetic fields of Earth, the Moon, and other planets.
AboutAbout the lab
Reading planetary interiors from the magnetic fields of Earth and the Moon
The Deep Earth Physics Lab studies the motions inside Earth, the Moon, and other planets, as well as their origin and evolution.
Inside Earth is a mantle made of rock, and inside that is a core made of molten iron.
The flow of iron in the core generates Earth's magnetic field, and the lab investigates this mechanism using numerical simulations and observational data.
The research covers not only Earth but also the magnetic fields of the Moon and Mercury.
Key terms
- Dynamo
- The mechanism by which molten iron flowing in the core generates a magnetic field
- Mantle
- A layer of rock in Earth's deep interior. The core lies inside it
- Magnetic anomaly
- Magnetic fields that remain locally in the Moon's crust. The Moon currently has no global magnetic field like Earth's
ResearchResearch themes
The lab studies the dynamics of the interiors of Earth, the Moon, and other planets, as well as their origin and evolution. Its subjects include the generation of intrinsic magnetic fields and the Moon's magnetic field and magnetic anomalies, and it pursues this research using both numerical simulations and observational data.
*Illustrative imageCore motions that generate Earth's magnetic field
The flow of molten iron in Earth's core generates a magnetic field through a mechanism called the dynamo. The lab investigates the motion of iron inside the core and the behavior of magnetic field lines using computer simulations.
*Illustrative imageEvolution of the Moon's magnetic field
The Moon currently has no dynamo-generated magnetic field like Earth's. Using numerical simulations, the lab investigates how the magnetic field believed from the rock record to have existed in ancient times was generated and sustained, and why it disappeared.
*Illustrative imageLunar magnetic anomalies and mini-magnetospheres
The lab studies the origin and evolution of lunar magnetic anomalies, as well as the Moon's mini-magnetospheres and the electromagnetic environment near the lunar surface, based on numerical simulations and observational data.
*Illustrative imagePlanetary magnetic fields and exploration
The lab investigates the mechanisms by which terrestrial planets generate their own intrinsic magnetic fields, using numerical simulations and observational data. It also works on magnetic field exploration of the Moon and Mercury.
MembersFaculty
The members of the Deep Earth Physics Lab are faculty, researchers, and doctoral, master's, and undergraduate students.As of 2021
- ProfessorFutoshi Takahashi
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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: “June 2014 magnetic field” ESA/DTU Space / Public domain (cropped)
- Core motions that generate Earth's magnetic field: “Earth's magnetic field, schematic” Zureks / CC0 (cropped)
- Evolution of the Moon's magnetic field: “NASA Apollo 17 Lunar Roving Vehicle” NASA / Harrison H. Schmitt / Public domain (cropped)
- Lunar magnetic anomalies and mini-magnetospheres: “Reiner Gamma- Swirling in Mystery (LROC1195)” NASA/GSFC/Arizona State University / Public domain (cropped)
- Planetary magnetic fields and exploration: “Mars - August 30 2021 - Flickr - Kevin M. Gill” Kevin Gill from Los Angeles, CA, United States / CC BY 2.0 (cropped)
- Related lab (Earth Interior Dynamics Lab): “The Day the Earth Smiled - PIA17172” NASA/JPL-Caltech/SSI / Public domain (cropped)
- Related lab (Earth and Planetary Natural History Lab): “Uncoiled Lower Creataceous Ammonites from Northern Bulgaria (Coll. N. Dimitrova) at the Sofia University 'St. Kliment Ohridski' Museum of Paleontology and Historical Geology” Motekov / CC BY-SA 4.0 (cropped)
- Related lab (Solar-Terrestrial Physics Lab): “Mercury’s magnetosphere during BepiColombo’s third flyby (annotated) ESA501746” European Space Agency / CC BY-SA 3.0 igo (cropped)
- Related lab (Earth Evolutionary History Lab): “Atapuerca dig site” Bcerrato1 / CC BY-SA 4.0 (cropped)
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