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

“Sean Dummy is trying to kill NASA!” Musk wrote on X, which he also owns, using an insulting nickname to refer to the acting ...

What has happened now? Why, it was only SpaceX founder Elon Musk, who is NASA’s most important contractor, referring to the ...

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

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

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

Acting Administrator Sean Duffy calls out SpaceX’s Starship for falling 'behind schedule,' and suggesting that Blue Origin ...

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 ...

NASA has suffered greatly since Trump was sworn in earlier this year, with leadership looking to slash budgets and reduce ...

Starship was NASA's vehicle of choice to land astronauts on the moon before NASA head Sean Duffy's latest move. Now, Musk is ...

It followed on the heels of Duffy's announcement that NASA will reopen competition for the Artemis 3 moon-landing contract, which Space ...