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Two Columns

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NASA's Role in the International Polar Year
2.26.07 -- NASA scientists discuss the role of the agency in the International Polar Year. NASA will study the polar regions of Earth using its system of Earth-observing satellites and explore the poles of Mars and the moon.
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Sea Ice and Cloud Streets in the Sea of Okhotsk
2.8.07 -- Tucked between Siberia and Russia’s frozen Kamchatka Peninsula, the Sea of Okhotsk was a field of ice when the Terra satellite captured this photo-like image on February 6, 2007.
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Detecting Clouds Over Snow and Ice
2.3.07 -- NASA sensors that can detect visible and invisible (infrared) light make it possible to separate clouds from snow and ice in satellite images of the poles.
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Detailed View of Arctic Sea Ice
2.1.07 -- Sea ice is spread across the nearly black backdrop of the Arctic Ocean in a broken mosaic in this image from NASA's Landsat 7 satellite on June 16, 2001. Large blocks of ice swirl against finely crushed ice that looks almost like foam.
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Russia's Lena River Delta
1.25.07 -- During the short summer of Russia's Far North, the Lena River Delta thaws and becomes an ecological haven. Scientists are interested in the area because changes in the freshwater runoff as well as the depth of the delta's permafrost are indicators of Arctic climate change.
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Satellites Detect Collapse of Arctic's Ayles Ice Shelf
1.13.07 -- On Aug. 13, 2005, warming Arctic temperatures caused the Ayles Ice Shelf on Ellesmere Island in northern Canada to break away from the island and float out to sea.
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