Watch Alien Moon (2019) HD Full Movie Free on solarmovie.do. Watch Alien Moon (2019) online free. The moon may have a sinister alien origin that mankind is not prepared for. From astronaut UFO encou...The moon may have a sinister alien origin that mankind is not prepared for. From astronaut UFO encounters, to flashing lights and geometric anomalies on the surface, it's possible that the moon may actually be a base for ancient aliens.