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Post by Solarius on Sept 30, 2009 22:08:35 GMT
science.nasa.gov/default.htm
Are Sunspots Disappearing? [/color][/center] 09.03.2009 The sun is in the pits of the deepest solar minimum in nearly a century. Weeks and sometimes whole months go by without even a single tiny sunspot. The quiet has dragged out for more than two years, prompting some observers to wonder, are sunspots disappearing? |
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Post by Solarius on Oct 2, 2009 10:39:57 GMT
Cosmic Rays Hit Space Age High
[/color][/center] 09.29.2009 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. Above: Energetic iron nuclei counted by the Cosmic Ray Isotope Spectrometer on NASA's ACE spacecraft reveal that cosmic ray levels have jumped 19% above the previous Space Age high. science.nasa.gov/headlines/y2009/29sep_cosmicrays.htm |
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Post by Solarius on Oct 16, 2009 14:09:06 GMT
Giant Ribbon Discovered at the Edge of the Solar System October 15, 2009 This is an amazing discovery! There is an arc-shaped region in the sky that is creating a large amount of ENAs, showing up as a bright, narrow ribbon on the maps. Before the IBEX spacecraft was launched, scientists used models to predict the ENA pattern across the sky. These models predicted variations of only tens of percents across the sky—in contrast, IBEX observes variations that are literally hundreds of percents over small angles in the sky. In other words, we are not only seeing ENAs in an unexpected pattern, we are seeing many more ENAs from small regions than we thought we would. |
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