Artemis 1: To Boldly Go Where Four RS-25 Engines Have Gone Many Times Before
Each of the four RS-25 engines currently positioned at the base of NASA's Space Launch System has gone to space many times before, and each has an interesting story to tell. One first flew in 1998, boosting astronaut John Glenn to orbit. Soon, if all goes well, these veteran boosters will propel NASA into the Artemis...