This page contains links to collections of free images. The phrase "free images" refers either to images in the public domain or to copyrighted images published with a clear license that grants freedom to reuse and/or modify.
|| Collection of images released under various CC licenses
|| Another collection of CC licensed images. Choose an appropriate license.
|| NASA's image archives contain many public domain images. Read the terms here.
| NOAA photo library
|| NOAA photos are also in the public domain. See statement here.
| FWS Digital Library System
|| The U.S. Fish and Wildlife Service also has a large collection of public domain images. See terms here.
|| This is a collection of 27,000 images from NASA, NOAA and FWS. (*)
*: I don't know if this is more convenient than the original archives or not.
Feel free to add more entries to the table.
Copyright © by the contributing authors.