Acting NTSB Chairman Christopher Hart briefs the news media on Saturday, soon after arriving at the Mojave Air & Space Port to begin an investigation into the loss of Virgin Galactic’s SpaceShipTwo.
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Sierra Nevada confirms ULA will launch first two Dream Chaser cargo missions
Sierra Nevada and United Launch Alliance have announced the most powerful version of the Atlas 5 rocket, with five strap-on boosters and a twin-engine upper stage, will send the first two Dream Chaser cargo missions to the International Space Station from Cape Canaveral in 2020 and 2021, a schedule that still must be confirmed by NASA.