Reusing shuttle engines only to throw them into the sea. The RS-25s are engines that were designed for the shuttle program to be able to be refurbished and reus

Reusing shuttle engines only to throw them into the sea. The RS-25s are engines that were designed for the shuttle program to be able to be refurbished and reused after each flight. Using them on this disposable rocket stage is like using a Stradivarius as firewood because you happen to have one lying around.