A three percent scale model of a blended wing body aircraft design recently was tested in NASA Langley's 12-Foot Low-Speed Tunnel. During the testing, engineers sought to clarify results from a previous test of the X-48C prototype in the Langley Full Scale Tunnel. The blended wing body is a hybrid shape that resembles a flying wing, but also incorporates features from conventional transport aircraft. This combination offers several advantages over conventional tube-and wing airframes. T...
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Chasma Boreale, a long, flat-floored valley, cuts deep into Mars' north polar icecap. Its walls rise about 4,600 feet, or 1,400 meters, above the floor. Where the edge of the ice cap has retreated, sheets of sand are emerging that accumulated during earlier ice-free climatic cycles. Winds blowing off the ice have pushed loose sand into dunes and driven them down-canyon in a westward direction. This scene combines images taken during the period from December 2002 to February 2005 by the ...
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These images show the effects of the tsunami on Japan's coastline. The image on the left was taken on Sept. 5, 2010; the image on the right was taken on March 12, 2011, one day after an earthquake and resulting tsunami struck the island nation. Image Credit: German Aerospace Center (DLR)/Rapid Eye

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