g Intelligence - Researchers have long wondered why the people of the Tibetan Highlands can live at elevations that cause some humans to become life-threateningly ill - and a new study answers that mystery, in part, by showing that through thousands of years of natural selection, those hardy inhabitants of south-central Asia evolved 10 unique oxygen-processing genes that help them live in higher climes. See article.
g Message - What would be a sign of alien intelligence? Forget mathematics — try a simple, pure-tone radio signal. See article. Note: This article is from 2003.
g Cosmicus - The first hypersonic X-51 scramjet powered long-duration flights to give the Pentagon a new "Prompt Global Strike" capability that ties atmospheric and space propulsion will begin as early as May 25 at Edwards Air Force Base, Calif. The X-vehicle scramjet flight tests are also a key step for the use of air breathing propulsion to launch into space. See article.
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