National Aeronautics and Space Administration

Goddard Space Flight Center

Sun-Earth Day 2010: Ancient Mysteries, Future Discoveries

Share

Promotional Materials!

Sun-Earth Day Flyer

Sun-Earth Day Flyer

Download this year's Sun-Earth Day Flyer and help spread the word!

NASA Fact

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