Several NASA Spacecraft Track Energy Through Space (IMAGE)

NASA/Goddard Space Flight Center

Several NASA Spacecraft Track Energy Through Space

Caption

On July 3, 2012, eight spacecraft were lined up on the night side of Earth, enabling scientists to track how magnetic energy from the sun moved around Earth, reconnected at a point about half way to the moon, and then spread through the back end of Earth's magnetic environment, the magnetotail.

Credit

NASA/SVS

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