Successful first test of high speed 'penetrator'

High speed ‘penetrators’ that could one day be used to breach the surface of planets have successfully passed their first test in the UK, accelerating to 700 miles per hour before striking their target. A team led by University College London (UCL) test-fired the projectiles in Wales, recording a peak of 20,000 gee upon impact (where humans can survive up to 10 gee).