It's fun to read articles from a few years ago [1]: > With SpaceX projecting a first Falcon Heavy flight in 2015, even with some slippage it seems reasonable

It's fun to read articles from a few years ago [1]: > With SpaceX projecting a first Falcon Heavy flight in 2015, even with some slippage it seems reasonable to suppose that Falcon Heavy will be at least as “operational” in 2018–19 as the SLS. Both craft should have made at least one flight, allowing mission planners to ground future efforts in reality rather than speculation. My prediction is that the SLS will never fly. Development might not be cancelled for a long time, because it's a jobs programme, but it will never fly. If Orion ever goes to the moon, i think it will start the journey on a SpaceX rocket. If Starship works out, then on that. If not, then on Falcon Heavy with extensive in-orbit assembly before the trip. Or perhaps even some four-booster Falcon Super Heavy, although probably not. [1] https://thespacereview.com/article/2737/1 https://thespacereview.com/article/2737/1