earthset
/ˈɜrθˌsɛt/
noun
- The event of the Earth disappearing below the horizon of the Moon or another celestial body, as seen from space or from that body's surface.
- An earthset looks like a slow, colorful sunset but with continents instead of clouds.
- From the space station, the crew observed a stunning earthset over the lunar horizon.
- The astronauts described the earthset as a peaceful and humbling sight.