NASA launches probe to study edge of solar system


	NASA launches probe to study edge of solar system

Silkweaver

10-19-2008 7:54 PM

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tags:

space, solar system, nasa

Silkweaver says:

"The interstellar boundary regions are critical because they shield us from the vast majority of dangerous galactic cosmic rays, which otherwise would penetrate into Earth's orbit and make human spaceflight much more dangerous," David McComas, IBEX principal investigator from the Southwest Research Institute (SwRI) in San Antonio, Texas, said recently.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/a2708b76-73c0-40c1-aea4-f280432abef1/DE8E1BBB-8246-42A6-BDA1-7B91B81FAA75/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.physorg.com/news143649750.html" href="http://www.physorg.com/news143649750.html" style="font-size: 11px;">www.physorg.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news143649750.html"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.physorg.com/img/65EFA309-CDCB-417D-9E70-77FE47F221A1" alt="Pegasus rocket being dropped from the L-1011 aircraft. Image credit: NASA" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news143649750.html">NASA on Sunday launched a probe into orbit high above earth to study the distant edge of the solar system where hot solar winds crash into the cold outer space.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news143649750.html">The IBEX is on a two-year mission to take pictures and chart the mysterious confines of the solar system -- including areas billions of kilometers (miles) from earth.
</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news143649750.html">The small, stop-sign-shaped probe is equipped with instruments that will allow it to take images and chart, for the first time, a remote region known as the interstellar boundary, where the solar system meets interstellar space. The area is a vast expanse of turbulent gas and twisting magnetic fields.
</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news143649750.html">The only information that scientists have of this distant region is from the twin Voyager 1 and 2 probes, launched in 1977 and still in service today.
</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news143649750.html">The mission will also study cosmic radiation, which has a negative impact on human health and space exploration.
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