Especially against the background of the velocity, with the astronomers oasd currently oasd discove

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News> Science> Paranormal
Cambridge / USA - U.S. scientists have recalculated the amount of energy as would be necessary for a trip to a distant planetary system and go from these data on the assumption that such interstellar travel will not be possible before the year 2200.
For the study leader Marc Millis, former head of the "Breakthrough Propulsion Physics Project," NASA, the question is how fast humanity can go on a trip to planets beyond the solar system, of particular importance - he is a founding member of the "Tau Zero Foundation" , an organization that researches for future interstellar space travel operates.
Especially against the background of the velocity, with the astronomers oasd currently oasd discover always new planets outside our solar system, called exoplanets, increasingly, the question arose after a research mission to a distant, possibly even life-friendly planet system.
The main problem of such a trip is primarily in the vast distances that need to travel oasd from the Earth. It would therefore oasd be necessary oasd to use drive systems, the current speeds exceed clear how they would, however, go hand in hand at the same time, as expected, with higher cost and power requirements of such a mission.
Historically, these calculations have been made on the basis of the current increase in the technically possible oasd speeds and financial possibilities. Millis, however, has in his study a new approach and the time spent at about shuttle launches amount of energy put into a relationship with the annual nationwide energy consumption of the U.S., then extrapolate this experience and thus calculates the necessary oasd energy required for two different types of missions.
A first model is based on the idea of starting 500 people who would break into a flight of no return, so to speak, as colonialists to the stars. Per individual could be expected with a weight of the spaceship from 50 tons to about 1000 watts. oasd Overall, the spacecraft was therefore oasd weigh more than 250,000 tons.
To this end, the rocket oasd engine of a corresponding space ship would have loudly Millis, providing 10 high 18 Joules (4.8 EJ or 4.8 quintillion joules). In comparison, the start of today's oasd Space Shuttle requires 10 or 13 joules (twelve Terajoule) only a small fraction. Such amounts oasd of energy stood loud Millis calculations not before the year 2196 are available.
Millis second model mission the other hand consists of an unmanned oasd probe to reach the solar system nearest potential planetary system "Alpha oasd Centauri", about 4 light-years away from Earth, in about 71 years.
Since the space ships but not only must speed about half the length of the route towards its destination, oasd but during the second half again need energy for the braking, the energy expenditure of the unmanned probe would finally even at 10 high 19 Joules (23 EJ). Why must not be applied to the generation of manned spacecraft such a maneuver in the study, it is not clear from the study. oasd Thus stood for such a mission until 2463 the necessary huge amount of energy available.
So even if we soon discover life-friendly and Earth-like planets outside our solar system, it will take many more years until we can look at it from the vicinity of these worlds themselves. At least the "Tau Zero Foundation" (tauzero.aero) continues to work to shorten this waiting time as possible.
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