The ICPS is the liquid oxygen/liquid hydrogen-based propulsion stage that will give NASA's Orion spacecraft the in-space push needed to fly beyond the moon before it returns to Earth on the first flight of SLS and Orion in 2018.
The ICPS is the liquid oxygen/liquid hydrogen-based propulsion stage that will give NASA’s Orion spacecraft the in-space push needed to fly beyond the moon before it returns to Earth on the first flight of SLS and Orion in 2018.
Image Credit: NASA/MSFC/Brian C. Massey