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Red dwarfs have one advantage over other stars as abodes for life: far greater longevity. It took 4.5 billion years before humanity appeared on Earth, and life as we know it will see suitable conditions for 1 [95] to 2.3 [96] billion years more. Red dwarfs, by contrast, could live for trillions of years because their nuclear reactions are far ...
Pantropy is a hypothetical process of space habitation or space colonization in which, rather than terraforming other planets or building space habitats suitable for human habitation, humans are modified (for example via genetic engineering) to be able to thrive in the existing environment.
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.
Space colonization, also called space settlement and space humanization, would be the permanent autonomous (self-sufficient) human habitation of locations outside Earth, especially of natural satellites or planets such as the Moon or Mars, using significant amounts of in-situ resource utilization.
The United States has been using the term "human presence" to identify one of the long-term goals of its space program and its international cooperation. [1] [9] While it traditionally means and is used to name direct human presence, it is also used for mediated presence. [1]
A Stanford torus interior (cutaway view) Interior view of a large scale O'Neill cylinder, showing alternating land and window stripes. A space settlement (also called a space habitat, space stead, space city or space colony) is a settlement in outer space, sustaining more extensively habitation facilities in space than a general space station or spacecraft.
Alexander, in a recent email, described the decision as one of many during that period that created what she called "unconscionable obstacles to meaningful relief for people ensnared by our ...
The LRV was an open rover for a crew of two, and a range of 92 kilometres (57 mi) during one lunar day. One NASA study resulted in the Mobile Lunar Laboratory concept, a crewed pressurized rover for a crew of two, with a range of 396 kilometres (246 mi). The Soviet Union developed different rover concepts in the Lunokhod series and the L5 for ...