HANK MORGAN / SCIENCE PHOTO LIBRARY HANK MORGAN / SCIENCE PHOTO LIBRARY
Joe Hirman, deputy chief of the Space Environment Services Centre (SESC), Boulder, Colorado, poses by one of the Center's solar telescopes. Operated by the National Oceanic and Atmospheric Administr- ation, the SESC is one of only four places in the world that forecast solar weather & its impact on Earth. Sunstorms can dramatically affect life on Earth; geomagnetic storms cause power surges, disrupt telecommunications & interfere with navig- ational systems. The Center can alert the world to an impending magnetic storm within minutes. Solar activity is continuously monitored via a network of magnetometers, cosmic ray detectors, ground- based solar telescopes, and orbiting satellites.
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