American space agency NASA said it fixed one of the RS-25 engines that was supposed to be part of the Artemis II mission, will now fly on Artemis IV.

Artemis 2's Space Launch System rocket core stage was fitted with 4 RS-25 engines at NASA’s Michoud Assembly Facility in New ...

The Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production ...

NASA's Artemis II wet dress rehearsal was halted due to a fuel line leak during preparations for a historic human flight ...

SLS (Space Launch System) uses a 50 year old rocket engine design that now costs $145 million each (not including labor and ...

NASA plans to test the planned leak repair with a second dress rehearsal fueling test later this month.

The RS-25 engines that will power the rocket into orbit were tested at Stennis Space Center in Hancock County.

However, NASA has not yet chosen an official launch date, and will not do so until the Artemis II stack passes its Wet Dress ...

Artemis II will send four astronauts around the moon in the first crewed flight test of the Space Launch System rocket and the Orion Spacecraft.

NASA begins Artemis II wet dress rehearsal, fueling the SLS and Orion ahead of a possible Feb. 8 launch window.

As Artemis II faces delays, Congress may be shifting its tune about moving away from the pricey SLS rocket to those developed ...