Petro, who joined NASA in 2007, played a central role in reshaping Kennedy Space Center into a premier multiuser spaceport, according to NASA Administrator Jared Isaacman. "From the outset of her distinguished tenure at NASA, Janet has served as a profoundly influential leader," Isaacman said in a statement, praising her work during significant transitions. The effective date of Petro's retirement has not been announced, nor has a successor been named for her role as Kennedy Space Center director.
Janet Petro retires after serving as acting NASA administrator

Key Points
- Janet Petro is retiring from NASA.
- Petro was acting NASA administrator from January to July 2025.
- Petro was director of NASA's Kennedy Space Center.