The fallen NASA administrator nominee was clearly not a fan of the agency's plan to return astronauts to the Moon.

Billionaire entrepreneur Jared Isaacman, President Donald Trump’s former nominee for NASA administrator, said Wednesday the reason for his pulled nomination may have been made over his ties to Elon Musk,

The U.S. government relies on SpaceX to support NASA and other agencies, and the company has received more $20 billion in federal contracts for it. As Musk and Trump threaten to cut ties, here’s what that would mean for the U.

In the heat of the moment, Elon Musk threatened to decommission SpaceX’s Dragon spacecraft and then he took it back. In doing so, however, the rocket billionaire dragged NASA into his messy breakup with Donald Trump, with the agency’s access to orbit now at stake.

Elon Musk’s threat to pull his Dragon spacecraft out of NASA programs would severely impact the International Space Station and other programs.