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National Aeronautics and Space Administration

Goddard Space Flight Center

Sun-Earth Day 2010: Magnetic Storms.

Sun-Earth Day 2010: Magnetic Storms

IMAGE GALLERY

An artist's concept of the heliosphere, a magnetic bubble that partially protects the solar system from cosmic rays.

An artist's concept of the heliosphere, a magnetic bubble that partially protects the solar system from cosmic rays. Read more at: http://www.nasa.gov/topics/solarsystem/features/ray_surge.html
Credit: Richard Mewaldt/Caltech

NASA Fact

Between May 10-12, 1999, the solar wind nearly vanished, causing Earth's magnetosphere to expand in volume by over 100 times!