Sean Duffy, the Secretary of Transportation and acting administrator of NASA, appeared on CNBC on Monday to say that SpaceX ...

Elon Musk is taking aim at the head of NASA amid news that the U.S. space agency may consider companies other than SpaceX to ...

The tech billionaire has called Duffy ‘dangerously stupid’ and campaigned for SpaceX astronaut Jared Isaacman to replace him ...

A spat over the future of NASA under the Trump administration went public on Tuesday, with Elon Musk panning Transportation ...

Musk's company is behind schedule in developing its Starship rocket. NASA's interim leader, meanwhile, wants to put ...

Elon Musk has hammered acting NASA chief Sean Duffy repeatedly on social media over the past few days, calling him "Sean ...

According to Steve Bannon, “This is why Trump picked Sean Duffy as interim head of NASA. When everyone was worshipping Elmo ...

Transportation Secretary Sean Duffy is reportedly in a power struggle with Jared Isaacman, an Elon Musk ally, over who will ...

The billionaire’s swipes at Sean Duffy are the latest example of his tangling with members of the Trump administration.

Acting NASA chief Sean Duffy and billionaire Elon Musk on Tuesday traded barbs online over who should lead the space agency, ...

Musk’s comments come one day after Duffy said he was in the process of reopening solicitations for a contract that had been ...

Elon Musk hurled a slew of insults toward Transportation Secretary Sean Duffy, calling him "Sean Dummy" and accusing him of ...