Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
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An artist rendering describes the GEOTAIL and MMS missions and how Earth’s magnetosphere absorbs the energy of the solar wind. (Credit: ISAS/JAXA)

An artist rendering describes the GEOTAIL and MMS missions and how Earth’s magnetosphere absorbs the energy of the solar wind. (Credit: ISAS/JAXA)

An international team led by Hiroshi Hasegawa and Naritoshi Kitamura (ISAS/JAXA) analyzed data taken by the U.S.-Japan collaborative GEOTAIL mission and NASA’s MMS satellites, finding that the interaction between the magnetic fields of Earth and the Sun, or more precisely the phenomenon known as “magnetic reconnection,” can feed aurora explosions.

Solar wind, a fast flow of charged particles driven by the Sun’s magnetic field, continuously blows against Earth and would be deadly if Earth’s magnetosphere didn’t provide invisible protection. Interaction between the solar wind and magnetosphere causes various phenomena such as aurora and larger outbursts known as aurora explosions.

According to the recently released scientific report, magnetic reconnection is believed to be the key mechanism involved in the entry and release of the solar wind energy that causes aurora explosions.

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