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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)
Sun

A full-sun mosaic showing the million-degree coronal plasma (TRACE)

NASA Fact

Some sunspots are cool enough that water vapor can form at a temperature of 1,550 °C.