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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

Composit of images of  the June 6, 2000 solar flare taken in white ligh tand ultraviolet (TRACE)
AURORA

A view of the aurora photographed by ISS astronaut Don Pettit in 2003 (Pettit: NASA)

NASA Fact

The largest, single, challenge for astronauts traveling to Mars will be to overcome exposure to solar storms and radiation.