File:Solar Rays Hit Space Age High (3967680978).jpg
Solar_Rays_Hit_Space_Age_High_(3967680978).jpg (720 × 540 pixels, file size: 188 KB, MIME type: image/jpeg)
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English: Cosmic Rays Hit Space Age High
Energetic iron nuclei counted by the Cosmic Ray Isotope Spectrometer on NASA's Advanced Composition Explorer (ACE) spacecraft reveal that cosmic ray levels have jumped 19% above the previous Space Age high. An artist's concept of the heliosphere, a magnetic bubble that partially protects the solar system from cosmic rays. "In 2009, cosmic ray intensities have increased 19% beyond anything we've seen in the past 50 years," says Richard Mewaldt of Caltech. "The increase is significant, and it could mean we need to re-think how much radiation shielding astronauts take with them on deep-space missions." The cause of the surge is solar minimum, a deep lull in solar activity that began around 2007 and continues today. Researchers have long known that cosmic rays go up when solar activity goes down. Right now solar activity is as weak as it has been in modern times, setting the stage for what Mewaldt calls "a perfect storm of cosmic rays." Full Story: www.nasa.gov/topics/solarsystem/features/ray_surge.html Credit: Richard Mewaldt/Caltech Voyager solar system graphic: NASA/GSFC/Walt Feimer |
| Date | Taken on 29 September 2009, 09:28:35 |
| Source | Solar Rays Hit Space Age High |
| Author | NASA Goddard Photo and Video |
| Flickr tags | cosmic; ace; nasa; composition; advanced; explorer; solar; rays; minimum |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/3967680978. It was reviewed on 23 July 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| current | 20:05, 23 July 2023 | | 720 × 540 (188 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://live.staticflickr.com/2649/3967680978_467560cff1_o.jpg via Commons:Spacemedia |
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