Coinspeaker SPCE Stock Down 8%, Virgin Galactic Joins Forces with Rolls-Royce for Mach 3 Supersonic AircraftsVirgin Galactic puts a major focus on the future of supersonic aircraft travel as it unveils a new high-speed Mach 3 design concept in partnership with Rolls-Royce. SPCE stock is down today in the pre-market.SPCE Stock Down 8%, Virgin Galactic Joins Forces with Rolls-Royce for Mach 3 Supersonic Aircrafts