Anti-Moon is a moon of anti-matter. Unlike Moon, who inspires poetry and burns with pleasure the eyes and hearts of poets and poetesses who enjoy seeing her beauty, Anti-Moon just does not do anything. That is just a pile of rocks floating into the space.
Travel to Anti-Moon
Anti-Earthians went to Anti-Moon by first time in 1870. However, they hate their moon, and the only thing they have done since then is to send bombs and explosives to Anti-Moon, so they would be able to explode it one time per all very soonly.