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Pictures | Thu Nov 29, 2012 | 4:15pm EST

NASA probe reveals organics, ice on Mercury

A radar image of Mercury's north polar region acquired by the Arecibo Observatory in Puerto Rico is shown superposed on a mosaic of Mercury MESSENGER images of the same area in this NASA handout photo released November 29, 2012. REUTERS/NASA/Handout

A radar image of Mercury's north polar region acquired by the Arecibo Observatory in Puerto Rico is shown superposed on a mosaic of Mercury MESSENGER images of the same area in this NASA handout photo released November 29, 2012. REUTERS/NASA/Handout

A radar image of Mercury's north polar region acquired by the Arecibo Observatory in Puerto Rico is shown superposed on a mosaic of Mercury MESSENGER images of the same area in this NASA handout photo released November 29, 2012. REUTERS/NASA/Handout
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A radar image of Mercury's north polar region acquired by the Arecibo Observatory in Puerto Rico is shown superposed on a mosaic of Mercury MESSENGER images of the same area in this NASA handout photo released November 29, 2012. REUTERS/NASA/Handout

A radar image of Mercury's north polar region acquired by the Arecibo Observatory in Puerto Rico is shown superposed on a mosaic of Mercury MESSENGER images of the same area in this NASA handout photo released November 29, 2012. REUTERS/NASA/Handout

A radar image of Mercury's north polar region acquired by the Arecibo Observatory in Puerto Rico is shown superposed on a mosaic of Mercury MESSENGER images of the same area in this NASA handout photo released November 29, 2012. REUTERS/NASA/Handout
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