On a Saturday morning in December 2022, Elon Musk summoned finance executives at Twitter, which he had bought six weeks earlier, to a conference call. Then he drilled into a spreadsheet that contained the social media company’s expenditures.

Elon Musk is backing Donald Trump’s transition co-chair Howard Lutnick to lead the Treasury Department, touting the billionaire CEO of Cantor Fitzgerald as a potential secretary who “will actually enact change” from the most powerful economic post in Trump’s cabinet.

SpaceX is on a trajectory to remain the most dominant player in space launches for years to come as it makes strides with its heavy-duty Starship rocket program.