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An artificial planet [1] (also known as a planetary replica or a replica planet) [2] is a proposed stellar megastructure. Its defining characteristic is that it has sufficient mass to generate its own gravity field that is strong enough to prevent atmosphere from escaping , [ 3 ] [ 4 ] although the term has been sometimes used to describe other ...
Artist's conception of a terraformed Venus.The cloud formations are depicted assuming the planet's rotation has not been accelerated. The terraforming of Venus or the terraformation of Venus is the hypothetical process of engineering the global environment of the planet Venus in order to make it suitable for human habitation.
An artist's conception shows a terraformed Mars in four stages of development.. Terraforming or terraformation ("Earth-shaping") is the hypothetical process of deliberately modifying the atmosphere, temperature, surface topography or ecology of a planet, moon, or other body to be similar to the environment of Earth to make it habitable for humans to live on.
The WGSBN has the right to act on its own in naming a minor planet, which often happens when the number assigned to the body is an integral number of thousands. [ 22 ] [ 24 ] In recent years, automated search efforts such as LINEAR or LONEOS have discovered so many thousands of new asteroids that the WGSBN has officially limited naming to a ...
A common object of discussion on potential terraforming is the planet Mars. To terraform Mars, humans would need to create a new atmosphere, due to the planet's high carbon dioxide concentration and low atmospheric pressure. This would be possible by introducing more greenhouse gases to below "freezing point from indigenous materials". [2]
Mormon cosmology teaches that the Earth is not unique, but that it is one of many inhabited planets, [39] each planet created for the purpose of bringing about the "immortality and eternal life" (i.e., the exaltation) of humanity. [40]
Schematic diagram of the orbits of the fictional planets Vulcan, Counter-Earth, and Phaëton in relation to the five innermost planets of the Solar System.. Fictional planets of the Solar System have been depicted since the 1700s—often but not always corresponding to hypothetical planets that have at one point or another been seriously proposed by real-world astronomers, though commonly ...
Four of these were helium-dominated, fluid, and unstable. These were V (Maldek, [22] V standing for the fifth planet, the first four including Mercury and Mars), K (Krypton), T (transneptunian), and Planet X. In these cases, the smaller moons exploded because of tidal stresses, leaving the four component belts of the two major planetoid zones.