I've been messing around with a solar system model, and realized that there are NASA textures for all the planets/stars that are available for free under the creative commons with this disclaimer: "Distributed under Attribution 4.0 International license: You may use, adapt, and share these textures for any purpose, even commercially." I did a little more research and the official site says these textures can be used commercially if credit is given. I'm guessing this means using them in a stock photo would be sketchy. Does anyone know what the legal allowances are with using these textures?
I've attatched a mockup I did of the solar system, using those textures for all the planets and the stars in the back.