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Topic: NASA’s TWINS Satellites

NASA’s Twins Satellites create Stereo Imaging Maps of Earth’s Magnetosphere

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Surrounding Earth is a dynamic region called the magnetosphere. The region is governed by magnetic and electric forces, incoming energy and material from the sun, and a vast zoo of waves and processes unlike what is normally experienced in Earth-bound physics.

Nestled inside this constantly changing magnetic bubble lies a donut of charged particles generally aligned with Earth’s equator. Known as the ring current, its waxing and waning is a crucial part of the space weather surrounding our planet, able to induce magnetic fluctuations on the ground as well as to transmit disruptive surface charges onto spacecraft.

Since 2008, NASA’s two TWINS spacecraft have been providing a sterescopic view of the ring current -- a hula hoop of charged particles that encircles Earth. (Credit: J. Goldstein/SWRI)

Since 2008, NASA’s two TWINS spacecraft have been providing a sterescopic view of the ring current — a hula hoop of charged particles that encircles Earth. (Credit: J. Goldstein/SWRI)

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