The student-run USC Rocket Propulsion Lab's Aftershock II vehicle soared to an altitude of 470,400 feet last month, higher than any amateur rocket had ever gone before.

USC students set world record with high-flying rocket launch (video)

Source: space
Source Link: https://www.space.com/space-exploration/launches-spacecraft/usc-students-set-world-record-with-high-flying-rocket-launch-video