Russian cosmonaut Oleg Artemiev was immortalized in a video taken by the International Space Station (ISS) on the west side of the Moon. The video was posted on his page on the social networking site twitter and one can observe the so-called lost Moon phenomenon. The Earth's natural satellite, in the course it follows, passes behind its horizon before reaching its edge.
This phenomenon can only be observed by someone on the International Space Station. Russian cosmonauts Oleg Aremiev and Anton Skalperov, Americans Andrew Fossiel, Richard Arnold and Scott Tingle, and Japanese Norrisige Kanai are currently on the International Space Station.