Billionaire Virgin Galactic founder Richard Branson, saluting the bravery of test pilots, vowed Saturday to find out what caused the crash of his prototype space tourism rocket, killing one crew member and injuring another, according to AP.
In grim remarks at the Mojave Air and Space Port where the craft was under development, Branson gave no details of Friday's accident and deferred to the federal National Transportation Safety Board, whose team had just arrived.
Branson added, however, that "we are not going to push on blindly."