Hypersonic engines promise new era of spaceplanes

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Source: http://feeds.newscientist.com/c/749/f/10897/s/2216dfcf/l/0L0Snewscientist0N0Carticle0Cmg215287650B80A0A0Ehypersonic0Eengines0Epromise0Enew0Eera0Eof0Espaceplanes0Bhtml0DDCMP0FOTC0Erss0Gnsref0Fonline0Enews/story01.htm

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