Mission to Mercury (1965), science fiction novel by Hugh Walters.

In Outlaw World (1946) it is discovered that it is hollow and inhabited inside.

The Vulcan is part of the Solar System in the Captain Future series.

'At the Center of Gravity' ( Astounding Stories, June 1936), short story by Ross Rocklynne: two individuals are trapped inside a hollow Vulcan.

'Vulcan's Workshop' ( Astounding Stories, June 1932), short story by Harl Vincent: a penal colony is located on Vulcan.

The planet was proposed as a hypothesis in 1859, and abandoned not later than 1915. Vulcan was a hypothetical planet supposed to revolve around the Sun inside the orbit of Mercury, invoked to explain certain irregularities in Mercury's orbit. Main article: Vulcan (hypothetical planet) Other non-existent Solar System objects used in fiction have been proposed or hypothesized by persons with no scientific standing, while yet others are purely fictional and were never intended as serious hypotheses about the structure of the Solar System. Often such objects continued to be used in literature long after the hypotheses upon which they were based had been abandoned. Some of these objects were, at one time, seriously considered as hypothetical planets which were either thought to have been observed, or were hypothesized in order to explain certain celestial phenomena.

The fictional portrayal of our Solar System has often included planets, moons, and other celestial objects which do not actually exist in reality. Unsourced material may be challenged and removed. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. 1.6 Elsewhere in the Solar Systemįictional planets of the Solar System.1 Fictional planets of the Solar System.

Universe sandbox 2 how to terraform