RT DogeDesigner (@cb_doge)NASA Administrator Jared Isaacman: SpaceX helped lead America’s shift to methane rocket fuel."SpaceX was one of the first to move on from their current propellant structure, which is basically refined diesel and liquid oxygen, to liquid methane or liquid natural gas and liquid oxygen.But we know so very little about it and what we get concerned about very early on is what happens if something goes wrong during testing? And we assumed a lot of worst case scenarios. But other compani ...