J-2X Engine
NASA's Marshall Space Flight Center
Powered by liquid oxygen and liquid hydrogen, the J–2X is an evolved variation of two historic...See more
Powered by liquid oxygen and liquid hydrogen, the J–2X is an evolved
variation of two historic predecessors — the powerful J–2 upper stage
engine that propelled the Apollo-era Saturn IB and Saturn V rockets to the
moon in the 1960s and 1970s, and the J–2S, a simplified version of the J–2
developed and tested in the early 1970s but never flown. The J–2X builds on
the legacy of the Apollo-Saturn Program and relies on nearly a half-century
of NASA spaceflight experience, heritage hardware and technological
advances.
