Rocket Report: Starship could save Mars Sample Return; BE-4s for second Vulcan
Enlarge / A BE-4 engine is moved into position on ULA's second Vulcan rocket. 0 Welcome to Edition 6.40 of the Rocket Report! There was a lot of exciting news this week. For the first time, SpaceX launched a reusable Falcon 9 booster for a 20th …