Alpha Centauri is a three-star solar system 4.37 light years from Earth, the nearest neighbors of our Sun. A planet has recently been detected in the system, which raises the questions of when and how we will make our first efforts to reach this planet, or some other (relatively) nearby planet, to expand the horizons of the human race. Interstellar Flight takes us through current theories of just how we are hypothesizing doing so.
To date, about 4,000 planets in the near regions of our galaxy have been identified as potential settlement options, about 1100 of which are confirmed. Most are Jupiter and Neptune-sized planets that orbit close to their corresponding stars. Estimates on the number of Earth-sized planets that could possibly support life in our galaxy fall around nine billion.
Space colonization is a myth?

For decades in history space was the giant playground - but only for NASA and the USSR. Now, many nations strive to reach and explore the last frontier. With the enormous costs for the venture, will cooperation prevail over national interests? Are there benefits in the near future - for all of us - in spending so much to get to the orbit? We touch upon all these questions with Director-General of the European Space Agency, Jean Jacques Dordain, on Sophie&Co.

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