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Stephen Hawking, one of the most famous and influential astrophysicists of our time, expressed a number of alarming predictions about the future of humanity and the planet before his death. Nowadays, some of these assumptions have been confirmed in NASA data - and now the threat to humanity seems much more real than it seemed before. Here are some important alerts to the scientist.

1. The end of the earth through global warming

Hawking has repeatedly warned that global warming is one of the most realistic threats to humanity. Speaking at the Tencent We in Beijing in 2017, scientists have warned that by 2600 the Earth can turn into a hot ball with a temperature of more than 250 ° C. Причинами такого сценарію стануть стрімке зростання населення та швидке виснаження природних ресурсів. A similar fate has already befell Venus millions of years ago - a powerful greenhouse effect made the planet unsuitable for life.

Although NASA has not confirmed the exact date of the end of the world, which Hawking spoke of, agency experts agree with its main thesis: the current rate of energy and natural resources are of serious concern. According to them, environmental collapse may occur even earlier than it has been predicted by 2060.

2. The only way out for humanity is to leave the earth

Hawking believed that for long -term survival, humanity should become a multi -planetary civilization. He suggested mastering the moon, Mars and other planets of the solar system. According to him, we have from 100 to 1000 years to find a new home before the land becomes unusable.

In the last years of his life, Hawking has actively supported the BreakthRugh Starshot project, which started in 2016. The program provides the launch of small spacecraft to find planets suitable for existence.

For the scientist, interstellar colonization was not just an ambitious dream, but the necessary "safety cushion" in the case of global catastrophes - from climatic changes to collisions with asteroids. Although Hawking itself has considered these events in the future for several centuries, NASA estimates hint: we can be much less than our time.

3. Meeting with aliens can be dangerous to humanity

Although Stephen Hawking supported the idea of ​​space exploration and finding extraterrestrial life, he considered contact with aliens potentially dangerous. “If they ever find us, the consequences can be the same as for indigenous Americans after Columbus arrives. It did not benefit them, ”the scientist warned.

In his opinion, alien civilizations are likely to have a huge technological advantage, and their purpose may not be to establish friendly contacts, but to find new energy and resources. Hawking did not argue that aliens are sure to be hostile, but emphasized that the risks are too high, so it is necessary to act with maximum caution.