Sean Duffy, the acting administrator of NASA for a little more than a month, has vowed to make the United States great in space.

Transportation Secretary Sean Duffy said investing in space exploration, including inhabiting the moon as a means of going to Mars, is essential to national security.

Acting NASA administrator Sean Duffy told Fox News host Jimmy Failla he had not yet been given "the alien briefing," despite ...

SpaceX President Gwynne Shotwell assured NASA Administrator Sean Duffy that the Human Landing System (HLS) variant of ...