<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://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/b153e8b8-dba2-4ce8-a37a-727b44c7c4cc/54AC8BE0-01F8-4976-A25A-2A6D62610251/" 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://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008" href="http://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008" style="font-size: 11px;">dsc.discovery.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008">Rainbows may be the key to identifying habitable planets around nearby stars, according to a researcher who says light scattering could indicate the presence of liquid water.</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://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008"><P>Jeremy Bailey of the Australian Center for Astrobiology at Macquarie University said looking at the way light bounces off droplets in a planet's atmosphere would be a sensitive indicator of liquid water in its clouds.</P></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://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008"><P>Bailey presented his case for using polarization, the same property of light that produces rainbows, to look for liquid water in the latest issue of the journal <I>Astrobiology</I>.</P></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://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008"><P>"A rainbow is caused by light that is reflected in a water droplet that is scattered at a particular angle," he said.</P></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://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008"><P>"That angle depends on the refractive index of the liquid that is scattering the light, so you can get rainbows at different angles depending on the types of liquids that might exist in clouds of other planets.</P></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://dsc.discovery.com/news/2007/05/22/rainbow_spa.html?category=space&guid=20070522103000&dcitc=w19-506-ak-0008"><P>"That's how we determined that the clouds of Venus were droplets of concentrated sulfuric acid."</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/54AC8BE0-01F8-4976-A25A-2A6D62610251/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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