National Aeronautics and Space Administration

Goddard Space Flight Center

Sun-Earth Day 2010: Ancient Mysteries, Future Discoveries


Promotional Materials!

Sun-Earth Day Flyer

Sun-Earth Day Flyer

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


The most powerful solar flare in the last 500 years occurred on September 2, 1859 and was sighted by two astronomers who happened to be looking at the sun at exactly the right time!