Hypersonic aircraft and weapons that can fly more than five times the speed of sound may seem like a futuristic fantasy, but defense giant Lockheed Martin says it is committed to making these ultrafast innovations a reality.
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from Innovation and Digital Marketing http://www.livescience.com/54152-affordable-hypersonic-jets-could-be-reality.html?utm_source=rss&utm_medium=rss
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