NASA's leadership change comes at a pivotal moment for the agency, which is already bracing for potentially severe funding cuts.

The selection of Secretary of Transportation Sean Duffy to temporarily lead NASA adds to the deep political uncertainties already facing the space agency

Amidst unprecedented budget cuts and looming layoffs, U.S. President Donald Trump has appointed Secretary of Transportation Sean Duffy as acting NASA administrator. The appointment is temporary, and Duffy will continue leading the Department of Transportation while assuming the NASA role, Trump said in a post on his social media site, Truth Social.