Student-built rocket breaks space altitude record as it hits hypersonic speeds
College kids at the University of Southern California (USC) blasted above an international altitude record, launching an amateur rocket 470,000 feet into space. The spacecraft, Aftershock II, has now bested a 20-year-old record held by hobbyists with the Civilian Space eXploration Team (CSXT), who managed to launch their rocket 380,000-feet high in 2004. But USC's Aftershock II also reached hypersonic speeds — reaching a maximum velocity of 5,283 feet-per-second at Mach 5.
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