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 space agency has published its budget request to Congress which would see funding for science projects cut by nearly a half.

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.

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