space future explained!
As the population on earth grows without bounds and we use up enough of mineral resources, the scarcity and rising costs of raw materials would tempt us to explore for mineral resources in other celestial bodies and space.
The first nearest spot, which come to mind for our future exploration, is the moon. Apollo mission, which landed there and subsequent other robotic missions, later on, brought back the lunar rocks with them.
Scientific analysis showed the lunar terrain to contain elements which are rare hear on earth such as uranium, chromium, titanium etc. but the lunar surface also contained great amounts of aluminium, which is the common raw material for industries here.
Rising demand for minerals and its scarcity on earth in the future would require the man setting up scientific laboratories on the moon to further understand the chemical makeup of the rocks there. The labs would be sealed up to create artificial air conditioned environment, imitating that on earth, so that scientists can work in it without wearing space suits. Fuel and food supplies would have to be regularly sent from earth through a space ship to meet the needs there.
Later on, mines would be setup on the lunar surface to excavate metals, non-metals. Rising costs of transporting back the minerals for refinements purposes on earth, would need us setting up refineries on the lunar excavation sites.
Ultimately, we would have to set up human colonies in other terrestrial bodies too. Moon, having no atmosphere of its own, is un-suitable for this purpose. Setting up air conditioned environment for humanity would be too expensive! Instead, it would be economical to travel to other nearer planets, such as mars, which is close to earth’s environment.
Mars, being farther from the sun than earth, is much cooler. Its average temperature is that of Antarctica in the earth’s south pole. Furthermore, it does not have vegetation, rivers- though ice is present on the poles and water is predicted to be under ground. Oxygen is scarce too. But still, with advances in technology, it would be possible to synthesize human friendly environment.
Another option is; instead of traveling much farther in space for human settlements, fueling up transportation costs, why not construct a huge space station similar to international space station?, ISS orbits the earth at a height of 500 km and is used as an earth observatory and a scientific lab in zero gravity by astronauts.
To create artificial gravity, imitating that on earth, human space stations would be made to spin, to produce centrifugally generated weight, so as to eliminate free floating of humans and materials.
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