What is the licence on these images? I can't seen anything on the site or in the HTML.

I've been waiting for a new Earth Rise/Set shot (which is thankfully at least 5568x3712px from a NIKON D5).

Edit: https://www.nasa.gov/nasa-brand-center/images-and-media/

> You may use this material for educational or informational purposes, including photo collections, textbooks, public exhibits, computer graphical simulations and Internet Web pages.