Melmac was the natal planet of ALF. Melmacians were characterized as being short, furry creatures who have advanced age longevity and multiple stomachs. Melmac was very much like Earth but it was oddly shaped, it orbited a purple sun and had two moons, green skies and blue grass. However, ALF claimed on Earth that Melmac had an orange sky and green clouds.
Melmac was destroyed due to nuclear war. After his home planet exploded, ALF wandered through space for a year before crash-landing on Earth.