Is the end of the world real?

The so-called "end of the world" usually refers to the end of mankind or the end of the earth. Anyway, it's true.

Judging from the end of mankind:

All kinds of natural disasters and human's own destructive behavior may lead to human extinction. Natural disasters, such as an asteroid hitting the earth (although the probability is low, no one can guarantee that this will not happen, and it does not need to be very large. An asteroid with a diameter of 10 km is enough to destroy most species on earth), and another example is the giant volcano in Yellowstone National Park. If it erupts again one day, volcanic ash will cover the earth for 1000 years, most of the sunlight will not reach the earth, and the earth will become a ice hockey. As for the destruction of the earth by human beings themselves, such as global warming caused by carbon emissions, shrinking glaciers, rising sea levels and increasing extreme weather. Another example is nuclear war ... which is unpredictable.

Judging from the end of the earth

Although the earth is unlikely to be blown up in a short time (even if there is an asteroid impact, it will only destroy the earth's environment. If you want to change the earth's rotation axis, rotation period, orbit and even hit the earth, you need a big guy with the same mass as the earth. But after 5 billion years, the hydrogen in the sun will be exhausted, and the core is mainly helium atoms, and the sun will become a red giant. Its radius can exceed 1 astronomical unit, which is 260 times the radius of the sun now. Beyond the current orbit of the earth, the earth will be swallowed up. ...

Everything in the universe has a process of occurrence, development and extinction!