Unlike many new launcher designs that use a single fuel between the first-stage and second-stage, Blue Origin has gone with with a methalox first-stage and a hydrolox second-stage.
This launcher remains under-development, with only pathfinder mockups having been shared with the public. The BE-4 engines for the first-stage have also only just become available. Project Jarvis is a separate initiative to create a re-usable second-stage for New Glenn.
Inaugural flight of the New Glenn launcher.
