THEMIS Mission

Launched in 2007, THEMIS is a 2-year NASA mission consisting of 5 identical satellite probes that will study the violent colorful eruptions of Auroras from our sun.

Radiated and Conducted Immunity Testing for components aboard the NASA THEMIS Satellite. Achieved in Fremont, CA.


NASA’s Time History of Events and Macroscale Interactions during Substorms (THEMIS) aims to resolve one of the oldest mysteries in space physics, namely to determine what physical process in near-Earth space initiates the violent eruptions of the aurora that occur during substorms in the Earth’s magnetosphere.

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For the first time NASA will launch a constellation of five satellites to study substorms. The THEMIS probes will line up over North America once every four days. Over the mission’s two-year lifetime, the probes should be able to observe some 30 substorms

Dec. 16, 2008: NASA’s five THEMIS spacecraft have discovered a breach in Earth’s magnetic field ten times larger than anything previously thought to exist. Solar wind can flow in through the opening to “load up” the magnetosphere for powerful geomagnetic storms. But the breach itself is not the biggest surprise. Researchers are even more amazed at the strange and unexpected way it forms, overturning long-held ideas of space physics… (read more)

NASA THEMIS Space Mission
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