NASA Science 3D Resources

FizzleMyth

NASA, the U.S. space agency, has a repository of over 300 free 3D models, 3D printable models, and textures.

Spacecraft, astronaut gear, asteroids, lunar surface, satellites, tools, equipment, and more.

Their licensing permissions are mostly open—some of it can be used in commercial work—but there are restrictions, especially when their logo is involved.

SofaCitizen

Nice resource!

FYI, your first link needs the http:// removed: https://science.nasa.gov/3d-resources/

The Smithsonian had a similar archive back when I needed some freebie space assets but it looks like that area on their website isn't functioning anymore which is a shame.

FizzleMyth

SofaCitizen said:

FYI, your first link needs the http:// removed:

Fixed. Thanks for the correction.