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National Aeronautics and Space Administration

Goddard Space Flight Center

Sun-Earth Day 2009: Our Sun Yours to Discover.

Sun-Earth Day 2009: Our Sun Yours to Discover

IMAGE GALLERY

This Hinode/EIS spectrum was obtained between wavelengths of 240-290 Angstroms (24 to 29 nanometers), and shows numerous lines contributed by ions such as iron for which 14 electrons have been removed (FeXV) due to the high-temperature atomic collisions. (Courtesy George Doschek, Hinode/EIS and NRL)
Hinode/EIS spectrum

This Hinode/EIS spectrum was obtained between wavelengths of 240-290 Angstroms (24 to 29 nanometers), and shows numerous lines contributed by ions such as iron for which 14 electrons have been removed (FeXV) due to the high-temperature atomic collisions. (Courtesy George Doschek, Hinode/EIS and NRL)

NASA Fact

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