Founding Astronaut for Virgin Galactic, Per Wimmer
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Virgin Galactic founding astronaut: 'Mission must go on'

Founding astronaut for Virgin Galactic, Per Wimmer has said the best way to honour the victims of the crash on Friday is to continue with the space mission.

US officials have started to investigate why a Virgin Galactic space rocket crashed over California's Mojave Desert on a test flight on Friday killing pilot Mike Alsbury.

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