=> https://en.wikipedia.org/wiki/Timeline_of_first_images_of_Earth_from_space Wikipedia's "Timeline of first images of Earth from spce"

=> https://explorer1.jpl.nasa.gov/galleries/earth-from-space/ NASA JPL: Looking at Earth: From 100 miles to 100 million miles

=> https://www.planetary.org/space-images/C_Zond05_1 The Planetary Society: Zond 5 image of Earth

=> https://www.planetary.org/space-images/zond-7-image-of-earth The Planetary Society: Zond 7 image of Earth

=> https://nssdc.gsfc.nasa.gov/imgcat/html/object_page/a10_h_34_5026.html

=> https://nssdc.gsfc.nasa.gov/imgcat/thumbnail_pages/earth_thumbnails.html NASA Space Science Data Coordinated Archive Image Catalog, Earth thumbnails