Astrophysical Journal: Humans may see aliens in 2,000 years


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The inhabitants of the Earth will be able to meet with aliens in 2 thousand years. This is the forecast of Chinese astronomers Wenjie Song and He Gao, published in Astrophysical Journal. But this is the most optimistic of the possible options. According to another forecast from the same scientists, earthlings will wait about 400 thousand years for contact with alien “brothers in mind”.

Both answers are based on the use of two parameters. The first parameter takes into account how many Earth-like planets exist and how often intelligent life appears on them. The second parameter is at what stage of the existence of a star (analogous to the Sun) intelligent life can appear on a nearby planet.

According to a pessimistic forecast, only 111 extraterrestrial civilizations can exist on the planets that revolve around the stars of the Milky Way. But if the optimistic forecast is correct, then there may be about 42 thousand intelligent civilizations in the Milky Way, whose representatives may turn out to be both hostile and friendly.


Source: Росбалт by www.rosbalt.ru.

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