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About the Cover


An inert reentry vehicle from a U.S. Air Force Minuteman III launched from Vandenberg Air Force Base, California, streaks to an impact at Kwalein missile range in September 1977 Similar tests in the Soviet Union lead a decision by the United States to built the controversial MX missile. See page 30. [U.S. Army]


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Science. ISSN 0036-8075 (print), 1095-9203 (online)