Will mankind become extinct in the future?

Scientists predict that mankind will become extinct with a high probability in the future.

The environment of the earth is not static. Great changes have taken place in the composition and content of the atmosphere since ancient times. Moreover, the earth's temperature has experienced several cycles of Great Ice Age and Interglacial Age. Once the earth suddenly gets cold, human beings will become extinct because they can't adapt to the temperature.

In the universe, stars have a life cycle, and the length of life is related to the quality of stars. The greater the mass of a star, the greater the gravity, which leads to the more intense reaction of nuclear fusion inside the star, and also leads to the shortening of the life of the star. At this time, the life of the sun is about 4.55 billion years, and it is still in the main sequence stage. After more than 5 billion years, the sun will expand into a red giant and the earth may be swallowed up. But humans certainly can't wait until then.

The future survival and development of mankind.

With the development of science and technology, human beings can improve their living conditions through interstellar migration. However, the future survival of mankind on the earth still faces many challenges. The resources on the earth are limited. With the increase of population and over-exploitation of resources, the natural ecosystem has been under great pressure. Therefore, human beings should pay more attention to environmental protection, popularize renewable energy, strengthen resource conservation and recycling, and realize sustainable economic development.

At present, humans have discovered a "Earth-like planet" Kepler 452B, but the planet is too far away from the Earth for humans to obtain more data about the planet. Even with enough data, current technology can't support human long-distance interstellar travel.