Looking across the Mars landscape presents a bleak image: a barren, dry rocky view as far as the eye can see. But scientists think the vista might once have been quite different. It may have teemed with water and even been ...
Space Exploration
Sep 24, 2014
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This is a question we are often asked: what is the difference between a coronal mass ejection (CME) and a solar flare? We discussed it in a recent astrophoto post, but today NASA put out a video with amazing graphics that ...
Space Exploration
Sep 23, 2014
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Two big explosions on the surface of the sun will cause a moderate to strong geomagnetic storm on Earth in the coming days, possibly disrupting radio and satellite communications, scientists said Thursday.
Space Exploration
Sep 11, 2014
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While this solar peak has been weaker than usual, from time to time we get a moderate punch from the Sun. Here's an example—what NASA calls a "mid-level" solar flare blasting off the Sun at 8:16 a.m. EDT (1:16 p.m. UTC) ...
Space Exploration
Aug 26, 2014
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On the evening of Aug. 20, 2014, the International Space Station was flying past North America when it flew over the dazzling, green blue lights of an aurora. On board, astronaut Reid Wiseman captured this image of the aurora, ...
Space Exploration
Aug 22, 2014
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At times, the sun erupts, hurling a magnetic superheated cloud of gas toward Earth. Racing at thousands of miles per second, and hundreds of times bigger than the sun, this cloud of solar particles can cause a magnetic storm ...
Space Exploration
Aug 7, 2014
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In this month's issue of Physics World, Ashley Dale from the University of Bristol warns of the "catastrophic" and "long-lasting" impacts of "solar super-storms" and the dangers we face if the threat continues to go unnoticed.
Space Exploration
Aug 1, 2014
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Two of the six instruments that will fly on NOAA's first Geostationary Operational Environmental Satellite - R (GOES-R) satellite have completed integration with the spacecraft. The Solar Ultraviolet Imager (SUVI) and Extreme ...
Space Exploration
May 29, 2014
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Earth dodged a huge magnetic bullet from the sun on July 23, 2012.
Space Exploration
Mar 18, 2014
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The sun emitted a mid-level solar flare, peaking at 6:34 p.m. EDT on March 12, 2014, and NASA's Solar Dynamics Observatory, or SDO, captured an image of it. Solar flares are powerful bursts of radiation. Harmful radiation ...
Space Exploration
Mar 13, 2014
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