> officials declined to say whether this first SLS launch will occur by year's end as had been planned or will bump into 2022
SLS was meant to fly in 2018. It's clear there's something very wrong with the NASA/Boeing/Lockheed combination. These companies have perfected the art of milking the taxpayer and impeding advances like orbital refuelling and depots as much as possible for the sake of higher profitability.
There's been over ten years of prominent people and ex-NASA administrators calling for it to be scrapped, these people have proven right time and time again, because now it's a $20bn white elephant with little future and everyone just going through the motions until it is shuttered.
NASA just signed a new contract for the already developed single use RS-25 engines on SLS, they are paying $150m per engine. This is about the same cost as a fully resuable Starship by SpaceX.