Alliant Techsystems recently demonstrated a critical capability of its liquid oxygen (LOX)/Methane rocket engine by igniting it in a vacuum chamber. The successful ignition test was designed to ...

NASA is getting ready to launch its massive, fully expendable rocket for the first crewed flight to the Moon since Apollo.

SpaceX has discussed swapping a troublesome Merlin even once the rocket has come to the pad. So it's almost certainly not the same engines. I haven't seen a good accounting of how much refurb and ...