<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/724fb3aa-25bb-4235-95d4-dcbfa3d9d1af/DBD0718D-22F3-46D1-BA1F-C78A7500D95F/" 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://antwrp.gsfc.nasa.gov/apod/ap090923.html" href="http://antwrp.gsfc.nasa.gov/apod/ap090923.html" style="font-size: 11px;">antwrp.gsfc.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://antwrp.gsfc.nasa.gov/apod/ap090923.html"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/antwrp.gsfc.nasa.gov/img/F417AE02-F0CE-4D99-AAA8-D22F461B87CF" alt="See Explanation. Clicking on the picture will download the highest resolution version available." /></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://antwrp.gsfc.nasa.gov/apod/ap090923.html">How similar is exoplanet CoRoT-7b to Earth? The <A href="http://www.eso.org/public/outreach/press-rel/pr-2009/pr-33-09.html">newly discovered</A> extra-solar planet is the closest physical match yet, with a mass about five Earths and a radius of about 1.7 Earths. Also, the home star to <A href="http://en.wikipedia.org/wiki/COROT-7b">CoRoT-7b</A>, although 500 light years distant, is very similar to our Sun. Unfortunately, the similarities likely end there, as CoRoT-7b orbits its home star well inside the orbit of <A href="http://antwrp.gsfc.nasa.gov/apod/ap080127.html">Mercury</A>, making its year last only 20 hours, and making its peak temperature <A href="http://antwrp.gsfc.nasa.gov/apod/ap080521.html">much hotter</A> than humans might find comfortable. <A href="http://www.youtube.com/watch?v=jrdEhWsQV64">CoRoT</A>-7b was discovered in February by noting a predictable slight decrease in the brightness of its parent star. <A href="http://www.eso.org/gallery/v/ESOPIA/illustrations/phot-33a-09-fullres.tif.html">Pictured above</A>, an artist's depiction shows how <A href="http://en.wikipedia.org/wiki/COROT">CoRoT</A>-7b might appear in front of its parent star.</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://antwrp.gsfc.nasa.gov/apod/ap090923.html">The composition of <A href="http://www.universetoday.com/2009/09/16/smallest-expoplanet-yet-has-rocky-surface/">CoRoT-7b</A> remains unknown, but given its size and mass, it cannot be a <A href="http://antwrp.gsfc.nasa.gov/apod/ap031114.html">gas giant</A> like Jupiter, and is very likely composed predominantly of rock.</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/DBD0718D-22F3-46D1-BA1F-C78A7500D95F/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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