Paul Louis Hertz is an American astrophysicist, and is best known for being the longest-serving Director of the Astrophysics Division at NASA, with a tenure from 2012 to 2022.

The Nancy Grace Roman Space Telescope (shortened as Roman or the Roman Space Telescope, and formerly the Wide-Field Infrared Survey Telescope or WFIRST) is a NASA infrared space telescope in development and scheduled to launch to a Sun–Earth L2 orbit by May 2027.