By NASA, Lunar Orbiter Image Recovery Project – https://lunarscience.arc.nasa.gov/LOIRP/loirp_gallery/zp-core/full-image-a=Other%20Images&i=LOIMAGEFULL.jpg&q=75&wmk=!&dsp=Protected%20view&check=32525773d1478ee80f4d11096788164aeed862f2.php.html, Public Domain, https://commons.wikimedia.org/w/index.php?curid=47533204
