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Four hundred miles above the Earth’s surface, for nearly 40 years, Landsat satellites have collected data for the U.S. Geological Survey, for use in scientific research. “Earth as Art 3,” an exhibit on display at the Library of Congress in Washington, D.C., offers an opportunity to celebrate the more dramatic images for their artistic value rather than their data value.

The latest satellite, Landsat 7, uses an instrument that collects seven images at once, with each image showing a specific part of the electromagnetic spectrum, called a band. Humans cannot see light outside the visible spectrum, but satellites are able to detect wavelengths into the ultraviolet and infrared. The original images are acquired in black and white, so color must be assigned via computer. The three primary colors of light are red, green and blue, and each color is given a different band/image. Once the three images are combined, you will have what is called a “false color image.” One common combination shows green, healthy vegetation as bright red, which is handy in forestry and agricultural applications. Landsat images are used to gather all kinds of geological and hydrological data and for other types of environmental monitoring.


The Erongo Massif, an isolated, sheer-walled mountain that rises 1,200 meters (3,937 feet) above arid Namibian plains. The massif is a remnant of a gigantic volcano that was active roughly 150 million years ago. At some point, the volcano’s center collapsed in upon itself under the weight of overlying lava. Eons of erosion by wind and wind-blown sand gradually exposed the long-dead volcano’s core of granite and basalt.


Oxbow lakes and cutoffs accompany the Mississippi river south of Memphis, Tennessee, on the border between Arkansas and Mississippi, USA.


Much of Oman is desert, but the Arabian Sea coast in the Dhofar region represents a marked difference. This coastal region catches the monsoon rains, or khareef, during the summer months. Drenching rains fall primarily on the mountainous ridge that separates the lush, fertile areas along the coast from the arid interior, feeding streams, waterfalls, and springs that provide water in the fertile lowlands for the remainder of the year.


Massive congregations of greenish phytoplankton swirl in the dark water around Gotland, a Swedish island in the Baltic Sea. Phytoplankton are microscopic marine plants that form the first link in nearly all ocean food chains.


After beginning in northern British Columbia and flowing through Yukon in Canada, the Yukon River crosses Alaska, USA, before emptying into the Bering Sea.

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The Polish coastline is about 500 km long. On it, there are several sandy beaches, some cliffs and a few villages that are now largely populated by depressed fishermen.

Poland was pretty happy when it was allowed to join the European Union, but ever since it’s been in the EU big boys club, the welfare of the fishing families has got shittier and shittier. Many are forced to sell their boats and open new businesses, or go looking for work elsewhere, meaning that the only people left in the villages are destitute fishermen who don’t have boats.

And what’s a fisherman without a boat? Just a sad guy in a cap who smells faintly of the one thing that he wants most, but cannot have.  

Photographer Tomasz Lazar, who was born in Szczecin, a town just 100 km from the Baltic Sea, sent us this set of photographs.  

I know we’re not usually big on artsy, black and white shots of gloomy things, but come on, this is Eastern Europe, people there are born seeing black and white.

See more: Going on a Bummer Vacation

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Europe has been battling a deep freeze that started in late January and has killed hundreds, snow that has trapped thousands in Balkan mountain villages and prompted worries of flooding as heavy snow melts. In Greece and Bulgaria, flooding on Monday and Tuesday left dozens of homes under water and at least eight dead. Serbian [...]

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It's time once more for a look into the animal kingdom and our interactions with the countless other species that share our planet. Today's photos include a fiery Spanish festival, a frightening encounter with a leopard in India, a flamingo undergoing laser treatment, a new species named in honor of entertainer Beyonce, and the plight of Ukraine's "vodka bears". These images and many others are part of this roundup of animals in the news from recent weeks, seen from the perspectives of their human observers, companions, captors, and caretakers. [42 photos]

A man rides a horse through a bonfire on January 16, 2012 in the small village of San Bartolome de Pinares, Spain. In honor of San Anton, the patron saint of animals, horses are ridden through the bonfires on the night before the official day of honoring animals in Spain. (Jasper Juinen/Getty Images)

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TEDxMälaren - Anne-Marie Körling - You Can't Imagine I am a Teacher

Anne-Marie is an Educator, Blogger, Writer and Columnist. She received the The Swedish Academy Award, The Swedish Teacher of the Year 2006 and Microsoft Innovative Teacher 200. Now amongst the most progressive educators in Haninge Kommun, Stockholm, Sweden. Anne is passionate about the way children are always learning and how schools should meet children with a hundred ways of education, rather than giving them one way. She will talk about how a teacher can make a difference, change, participate and feed forward. TEDxMälaren (June 15, 2010) was organized by a bunch of quirky students from Singapore while on exchange in Sweden. The name Mälaren comes from Lake Mälaren, the third largest lake in Sweden. Lake Mälaren meets the Baltic Sea on its eastern end to form 14 major islands, thus shaping Stockholm. Just like Lake Mälaren that connects towns across Sweden, TEDxMälaren will connect topics in featuring a holistic perspective of inter-linked global issues through the audience, the organizers and speakers of diverse backgrounds, with different forms of media. TEDxMälaren aims to reach beyond the Scandinavian seas and explore the influence of cultural, political and socio-economic diversity on the way we think, and ought to think for a better future. AboutTEDx, x = independently organised event In the spirit of ideas worth spreading, TEDx is a program of local, self-organised events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video <b>...</b>
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