Both of the popular NASA logos do not have an associated font name. This is because NASA has always had its logos designed specifically for the organization rather than using a commercially available font.
The famous NASA "meatball" design, featuring the red airfoil with white text and stars on a circle of blue, was designed by the NASA researcher James Modarelli in 1959. In 1975, designers Richard Danne and Bruce Blackburn created the famous red text NASA logo. This red logo has been called "the worm" and is known for the missing cross-strokes in the letter A.
Both logos are well-known, although NASA returned to the meatball logo in 1992. Although neither design originally used a commercially available font, many font designers and typographers have created fonts that mimic both NASA designs.