This week’s rapid, unscheduled disassembly of Elon Musk’s bromance with Donald Trump has left officials at America’s space and security agencies reeling. One NASA official, wary of the agency’s dependence on SpaceX as the space exploration industry’s leading recipient of government contracts,

President Donald Trump's threat to cancel Elon Musk's government contracts would have far-reaching implications, experts said.

NASA and Pentagon officials moved swiftly this past week to urge competitors to Elon Musk’s SpaceX to more quickly develop alternative rockets and spacecraft after President Donald Trump threatened to cancel Space X’s contracts and Musk’s defiant response.