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Vulcan rocket chosen for 2021 moon launch

Vulcan rocket illustration
An artist’s conception shows United Launch Alliance’s Vulcan rocket lifting off. (ULA Illustration)

United Launch Alliance’s next-generation Vulcan rocket – and Blue Origin’s next-generation BE-4 rocket engine – have been chosen to send Astrobotic’s Peregrine moon lander as well as Sierra Nevada Corp.’s Dream Chaser mini-shuttle to the final frontier in 2021.

Neither of the past week’s announcements is all that surprising, because Astrobotic and SNC both had previous agreements to use ULA’s current-generation Atlas 5 rocket. But both announcements underscore the importance of holding to the current schedule for rolling out the BE-4 as well as the Vulcan, which is designed to use two BE-4 engines on its first-stage booster.

Blue Origin, the privately held space venture founded by Amazon CEO Jeff Bezos, is thought to be in the final stages of testing the BE-4’s performance – not only for ULA’s Vulcan but also for its own orbital-class New Glenn rocket, which is also due for its maiden flight in 2021.

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By Alan Boyle

Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.

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