Some Trump administration officials, including at the White House, have expressed frustration with Transportation Secretary ...

After NASA's head indicated SpaceX could lose its moon lander contract, Elon Musk went on the attack on X against Sean Duffy.

NASA acting administrator Sean Duffy suggested SpaceX may not be taking NASA to the moon. Experts said it’s unlikely another ...

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

Elon Musk has publicly criticized NASA's chief, Sean Duffy, questioning his competence to lead the space agency. Musk's ...

Elon Musk criticized NASA’s acting chief Sean Duffy after the agency opened its Artemis III moon lander contract to SpaceX ...

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

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

SpaceX Chief Executive Elon Musk hurled insults at NASA’s acting administrator a day after complaints SpaceX was behind ...

Elon Musk voiced his disapproval of acting NASA administrator Sean Duffy Tuesday in a slew of messages donning him “Sean Dummy.” ...

Elon Musk launches a series of posts on X responding to Transportation Secretary Sean Duffy after he claimed Musk's company ...