The launch of spacecraft into orbit is incredibly expensive and difficult, and so scientists continue to revert to the idea of a space elevator that can more easily lift humans and equipment from Earth's atmosphere. Researchers have now come up with a reversal of a concept that, at least in theory, is feasible with today's technology.
Instead of building a space elevator up from Earth, build a "space line" down from the moon, say astrophysicists Zephyr Panoire of Cambridge University in the UK and Emily Sandford of Columbia University in New York.
Based on their calculations, the researchers claim that such a construction is technically and economically feasible with the tools and materials we have today ̵
The benefit of a space line over a space elevator is that it will only travel around the Earth once a month – because it will be attached to the moon and not to the earth – and that means less tension coming from centrifugal forces.
In fact, it will not touch our planet, but push down a geostationary orbit – about 42 164 kilometers above the surface – ready to transport whatever is needed to other areas of space.
"By extending a line anchored to the moon, deep into the Earth's gravity well, we can build a stable, changing cable that allows free movement from the Earth's surroundings to the surface of the moon," Penoire and Sandford wrote in their article. "
" This would reduce the fuel needed to reach the moon's surface to one third of its current value. "
Most importantly, the super strong materials we already have, including the Zylon carbon polymer, would work in this  By the blow of what is known k At the Lagrangian point – where the gravitational forces of the Earth and the Moon will converge to balance each other – researchers believe that sufficient stability can be achieved for operations.
There would be some kind of "base camp" here, the researchers say:
"Such a Base Camp will allow the construction and maintenance of a new generation of experiments on a cosmic basis – one can imagine telescopes, particle accelerators, gravity discriminatory detectors waves, vivariums, power generation and launch points for missions to the rest of the solar system. "
The weight of the w ould base bearing counter also helps to keep the long cable anchored and stable – it will eventually have to extend more than 300,000 kilometers (186 411 miles).
As an added bonus, the risk Space impacts (such as meteors) are low, and cable can be produced to withstand small impacts, researchers suggest.
The idea of a lunar space line is not entirely new, but this latest study shows that is now feasible in terms of cost and practicality whereas this is only a proof of concept and the work does not yet appear in a peer-reviewed journal.
In other words, work on the space line will not start any time soon, but unfortunately it may give us more viable alternative for exploring low cost space from a space elevator – and at least the math checks. .org.