Is the NASA logo copyright free?
The NASA Insignia, Logotype, identifiers, and imagery are not in the public domain. The use of the Insignia, Logotype and NASA identifiers is protected by law, and imagery is made available for use consistent with Media Usage Guidelines. The National Aeronautics and Space Administration (NASA) has three official insignias: the NASA seal, the NASA insignia (known as the meatball) and the NASA logotype (known as the worm). The logotype was retired from official use from May 22, 1992, until April 3, 2020, when it was reinstated as a secondary logo.