Blue Ghost has left Earth’s orbit, carrying NASA’s science to the Moon. Instruments are performing well, including a ...

On Artemis I, it was responsible for raising the initial orbital perigee and then performing the all-important translunar injection (TLI) burn to send Orion and the European Service Module duo on ...

After proving all systems are good to go, the crew will complete what is called a translunar injection (TLI) burn to exit orbit around Earth and begin the trek to the Moon. Traveling to the far ...

ICPS will do a full TLI burn with the uncrewed Orion on EM-1; for the first crewed Orion on EM-2, ICPS it will do an Apogee Raise Burn that takes Orion to the second orbit of the hybrid triple.

One issue involves a valve in the Interim Cryogenic Propulsion Stage (ICPS), a propulsion module that’s being used on the early SLS flights to provide the trans-lunar injection (TLI) burn that ...