Somnivm, seu opvs posthvmvm de astronomia lvnari

Somnium (Latin for "The Dream") is a novel written in Latin in 1608 by Johannes Kepler, and first published in 1634 by Kepler's son, Ludwig Kepler. In the narrative, an Icelandic boy and his witch mother learn of an island named Levania (our Moon) from a daemon. Somnium presents a detailed imaginative description of how the Earth might look when viewed from the Moon, and is considered the first serious scientific treatise on lunar astronomy. Carl Sagan and Isaac Asimov have referred to it as one of the earliest works of science fiction.