<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/18110689-7513-49f4-b55b-9d2c70549baf/3B6936A8-BE1A-45BA-915A-B3AE69A7A997/" 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://earthobservatory.nasa.gov/Study/CitiesAtNight/" href="http://earthobservatory.nasa.gov/Study/CitiesAtNight/" style="font-size: 11px;">earthobservatory.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/8F82F647-4D20-4664-BF0A-8DC2F4C99368" alt="Cities at Night" /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/B0A2B5DB-C82C-4B6A-A3F4-6DD85E90EF26" alt="The British Isles at night. Photograph taken from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><P class="rt_caption_image">Looking east from a location southwest of Ireland, an astronaut took this nighttime panorama of population centers in Ireland and the United Kingdom. Image <A href="http://eol.jsc.nasa.gov/scripts/sseop/photo.pl?mission=ISS016&roll=E&frame=27034" linkindex="3">ISS016-E-27034</A> was taken on February 1, 2008, using a 28 mm lens.</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://earthobservatory.nasa.gov/Study/CitiesAtNight/">what about humanity’s signature footprint—cities? By day, cities viewed from space can blend into the countryside, or appear as gray smudges, depending on the style of development and size of the urban area.</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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/8CECF3BF-6619-456B-B844-B6FB5CDD83C0" alt="Chicago by day, from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/A41A72AE-91BA-4297-81C1-0E819257F72A" alt="Chicago by night, from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/525EB01D-4632-4329-9028-9E827959DB67" alt="Port of Long Beach at night. Photograph from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><P class="rt_caption_image">Orange sodium vapor lights illuminate the port facilities of Long Beach, California, supporting the round-the-clock operations of one of the world’s busiest commercial cargo ports. Image<A href="http://eol.jsc.nasa.gov/scripts/sseop/photo.pl?mission=ISS016&roll=E&frame=27162" linkindex="11"> ISS016-E-27162</A> was taken on February 4, 2008, using the 400 mm lens, providing superior resolution.</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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/362937BA-B4CA-453D-ACF4-CDD2D775C92E" alt="Las Vegas strip at night, from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/">The “Vegas Strip” of casinos and hotels—reputed to be the brightest spot on 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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/F14D4D79-6F43-4B8E-AFB1-474F43732A07" alt="Denver at night. Photograph taken from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/">The streets of Denver, Colorado, are aligned with the cardinal directions</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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/6575904A-60D0-4533-9600-69AFD25E72B0" alt="Tokyo at night. Photograph from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/">night lights of Tokyo, Japan, have a blue-green glow that comes from mercury vapor lighting</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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/2E8B3382-9CF1-4688-AD88-94354174345C" alt="El Paso, Texas and Juaréz Mexico at night. Photograph taken from the International Space Station." /></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://earthobservatory.nasa.gov/Study/CitiesAtNight/"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/04CB03CD-A0AE-4A43-A6E2-571C75CD29A0" alt="Mecca and Jidah at night. Photograph taken from the International Space Station." /></div></blockquote><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://content7.clipmarks.com/images/clip-icon.gif" 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://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=15274" href="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=15274" style="font-size: 11px;">earthobservatory.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=15274"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/71380E06-B663-47C2-8E20-83A3F28DCB5B" alt="São Paulo, Brazil, at Night" /></div></blockquote><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://content9.clipmarks.com/images/clip-icon.gif" 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://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=14779" href="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=14779" style="font-size: 11px;">earthobservatory.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=14779"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/E49EE67A-8C8D-47C9-92E3-5C8DCFDF5160" alt="New York City and East Coast City Lights" /></div></blockquote><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://content7.clipmarks.com/images/clip-icon.gif" 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://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=16784" href="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=16784" style="font-size: 11px;">earthobservatory.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=16784"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/E124AB96-5B8F-454E-A7C5-32FD3C86C47E" alt="Seoul, South Korea" /></div></blockquote><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://content9.clipmarks.com/images/clip-icon.gif" 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://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=10929" href="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=10929" style="font-size: 11px;">earthobservatory.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=10929"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/0D4B175D-E2D2-4CAF-90E3-41047DA0F0B3" alt="London by Night" /></div></blockquote><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://content7.clipmarks.com/images/clip-icon.gif" 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://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=11278" href="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=11278" style="font-size: 11px;">earthobservatory.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=11278"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/5FCC8AA8-5C00-4EA4-9ABC-5AF85F7C7C6D" alt="Buenos Aires at Night" /></div></blockquote><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://content9.clipmarks.com/images/clip-icon.gif" 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://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=14772" href="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=14772" style="font-size: 11px;">earthobservatory.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=14772"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/earthobservatory.nasa.gov/img/1952F267-9B45-4EB4-A018-E3A8904F1EF8" alt="Los Angeles at Night" /></div></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/3B6936A8-BE1A-45BA-915A-B3AE69A7A997/blog/" title="blog or email this clip"><img src="http://content7.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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