Sun Erupts: Epic Blast Seen by NASA Solar Observatory

Publication: National Geographic News   Date: April 23, 2010   View Article

NASA’s new Solar Dynamics Observatory may be getting all the press this week for its retina-searing first pictures of the sun. But two old sun-observing warhorses recently showed they’re not quite ready for pasture yet.

The twin, golf cart-size spacecraft of NASA’s Solar Terrestrial Relations Observatory (STEREO) mission filmed, in ultraviolet light, the largest solar “prominence” in 15 years, according to the space agency.

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