Alysha Reinard, as research scientist with National Oceanic and Atmospheric Administration and the University of Colorado Boulder, speaks during a press briefing, Thursday, Aug. 18, 2011, at NASA Headquarters in Washington. The briefing was held to discusses new details about the structure of solar storms and the impact they have on Earth. The new information comes from NASA's Solar Terrestrial Relations Observatory, or STEREO, spacecraft and other NASA probes. Photo Credit: (NASA/GSFC/Rebecca Roth)