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Two Columns

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Exploring the Lunar Surface
12.4.06 -- NASA announced in December 2006 the initial elements of the Global Exploration Strategy and a proposed U.S. lunar architecture, two critical tools for achieving the nation's vision of returning humans to the moon.
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Satellites Detect Retreating Ice and Snow in Greenland
11.25.06 -- Greenland's ice sheet is losing mass, particularly in the Southeast. This image shows retreat of glaciers in southeastern Greenland.
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NASA and NOAA Announce 2006 Antarctic Ozone Hole is a Record Breaker
10.19.06 -- Scientists from NASA and the National Oceanic and Atmospheric Administration report that this year's ozone hole in the polar region of the Southern Hemisphere has broken records for area and depth.
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Chasma Boreale Near Mars' North Pole
10.16.06 -- NASA's Mars Reconnaissance Orbiter reveals fine-scale details of the layers along a deep canyon's walls in Mars' north polar ice sheet. The canyon is a mile deep cleft into the ice sheet. Scientists do not know what caused its formation.
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Antarctic Ozone Hole: Annual Maximum Thinning (1979-2006)
9.24.06 -- The 2006 ozone hole in the polar region of the Southern Hemisphere was the largest ever observed. This animation shows the annual maximum thinning of ozone (resulting in the largest ozone hole for each year) from 1979-2006.
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A Tour of the Cryosphere:Earth's Frozen Assets
3.23.06 -- In a little more than seven minutes, NASA data visualizers lead viewers across the icy reaches of Antarctica, the drifting expanse of polar sea ice, the shrinking cap around the North Pole, and more.
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