Drag the globe, scrub the date, and watch the shadow line cross NASA's Commercial Lunar Payload Services (CLPS) landing sites. Click a site to see its Sun and Earth angles over a month.
Both run entirely in your browser, with the sources listed inside each one.
Browse CLPS missions, then test any landing site: Sun and Earth elevation over time, operating windows, horizon masks, comparisons between sites.
Pick Mars or the Moon's south pole, then rank Earth sites by how many of the target's traits they match, with every gap shown as "not stated".