Sun Down: High-Energy Cosmic Rays Reach a Space Age Peak
Tuesday, October 6, 2009 - 06:07
in Astronomy & Space
It's been a slow two years for solar activity, with 2008 bringing the greatest number of blank, or sunspot-free, days in nearly 100 years . And now this year, albeit there are signs of stirring on the sun , is on pace to top 2008 as the sleepiest since 1913. [More]
Read the whole article on Scientific American
More from Scientific American
Related
- VERITAS telescopes help solve 100-year-old mystery: The origin of cosmic raysMon, 2 Nov 2009, 14:16:01 EST
- NASA's Fermi explores high-energy 'space invaders'Mon, 4 May 2009, 12:11:55 EDT
- Cosmic rays hit space age highTue, 29 Sep 2009, 12:43:13 EDT
- Optimum running speed is stride toward understanding human body formThu, 19 Mar 2009, 14:26:20 EDT
- Los Alamos observatory fingers cosmic ray 'hot spots'Mon, 24 Nov 2008, 10:57:11 EST