Now the earth is adding nearly 80 million people every year,
If you were standing at the equator of the earth when you were 6 years old,
Command all 8-year-old men and women on earth, every 1 second, a man and a woman must pass in front of you,
May I ask how old are the men and women who pass by when you are 300 years old?
quite a while,
Blackfoot shook his head,
Blackhead paused and continued:
Earth' s civilization in 7017 AD can reach the second-level stellar civilization,
If humans do not become extinct within 3 million years,
Then in the 3 million years of the earth' s Gregorian calendar, human beings will find a planet suitable for human existence,
In 1.5 billion years of the earth' s Gregorian calendar,
The luminosity of the sun will increase a lot, causing the earth' s climate to overheat,
Threatening the survival of multicellular organisms, the earth' s environment will be Martianized,
At the time of 3.3 billion years of the earth' s Gregorian calendar,
Mercury may hit Venus, causing the entire solar system to face a major collapse,
At 4 billion years of the earth' s Gregorian era,
The Andromeda Galaxy, 220,000 light-years in diameter, and the Milky Way, 180,000 light-years in diameter, will collide,
Are we going to get out of the Milky Way before the Andromeda galaxy collides with the Milky Way?
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