I built a zoomable collection viewer for all NASA Artemis II + Apollo 8 gallery images at their full original resolutions—nearly 2 gigapixels across 104 images. Spanning 1968 Earthrise to 2026 Earthset:

https://zoomhub.net/showcase/photography/nasa

Try different layouts with L (grid, masonry, spiral, etc.), filter by gallery or camera, WASD/Q/E/Tab to navigate.