National Aeronautics and Space Administration
Goddard Space Flight Center
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. Read more at: http://www.nasa.gov/topics/solarsystem/features/ray_surge.html
Credit: Richard Mewaldt/Caltech
NASA Fact
The fastest coronal mass ejection was recorded on August 4, 1972 and traveled from the sun to earth in 14.6 hours - a speed of nearly 10 million kilometers per hour!