The earliest stories set on Neptune itself portrayed it as a rocky planet rather than as having its actual gaseous composition; later works rectified this error.
[9][12][13] Early works incorrectly depicted Neptune as a solid planet, and several stories thus include human expeditions to its surface.
[3][9] It also appears in the 1930 short story "The Monsters of Neptune" by Henrik Dahl Juve, this time with a tropical climate.
[2][3] In the 1930 short story "The Universe Wreckers" by Edmond Hamilton, the former inhabitants of Neptune have left the planet for its moon Triton due to environmental changes.
Once more became known about Neptune through advances in planetary science, fiction writers began portraying it more accurately as a gaseous planet.
[9] In the 1969 novel Macroscope by Piers Anthony, Neptune is converted to a world ship,[1] and in the 1997 film Event Horizon the titular spacecraft is adrift in Neptunian orbit.
[9][20][21] In the 1994 novel Neptune Crossing by Jeffrey Carver, an alien on Triton helps humanity avert an impact event.