Solar flare

  • There's just as great a chance of a solar flare hitting Earth as there is an earthquake rocking California. Photo by Flickr user Dave's Domain.
    August 7, 2014   BY Donald Goldsmith 

    Beyond Earth’s atmosphere lurks a threat that could knock out our electrical grid and cause catastrophic structural, not to mention economic, damage. The risk within the next decade is about as great as that of another earthquake shaking California. So why haven’t we prepared? Continue reading

  • A mid-level flare, an M6.5, erupted from the sun on April 2, 2014, peaking at 10:05 a.m. EDT. This image from NASA's Solar Dynamics Observatory shows the flare in a blend of two wavelengths of extreme ultraviolet light: 131 Angstroms and 171 Angstroms, colorized in yellow and red, respectively.
    April 6, 2014   BY newsdesk 

    NASA’s Solar Dynamics Observatory has released dramatic video of a “mid-level” solar flare from April 2. Flares are short, powerful bursts of radiation emitted from the sun’s surface. NASA says the radiation cannot penetrate the Earth’s atmosphere, but on rare occasions, … Continue reading

  • April 4, 2011   BY Jenny Marder  

    As the sun enters its stormy season, and as GPS systems and electricity networks become increasingly vulnerable to solar eruptions, NASA scientists are working to better understand the mysteries of space weather. Continue reading