American scientists want to build a "Moon Ark" to save 6.7 million species on the earth. Will the earth really be destroyed?

American scientists want to build? Moon Ark? 6.7 million species of the earth will be preserved, and the earth will really be destroyed one day in the future. At that time, the sun will become a big fireball, and the high temperature will devour the earth. Hawking also predicted that mankind will face the day when the earth will be destroyed, but this time may be very long.

Recently, scientists from the University of Arizona plan to build it on the moon? Moon Ark? In order to preserve the 6.7 million species of the earth, to preserve the genetic diversity of the earth in the event of a global disaster, and to help mankind reproduce after the destruction of the earth. The cost of realizing this project is very high, hundreds of billions of dollars. In addition, sample preservation also faces great difficulties. Someone asked, will the earth really be destroyed? The answer is yes.

Since the Big Bang, the earth has been around for 4.55 billion years. After years of evolution, there are more and more species, and human beings have stood at the top of the food chain. Today's earth is actually riddled with holes. Facing global warming, population growth and over-exploitation of the earth's resources, a series of problems are exposed. Hawking predicted that in 2032, the earth will enter an ice age, in 2060, human beings must find a new place to live, and in 2 100, human beings will settle in outer space, and new species may appear. There will be an ecological crisis in 22 15 years, and the earth will become a place in 2600. Fireball? . Some scientists also say that in about five billion years, the sun will expand into a red giant and devour the surrounding planets, and the high temperature will destroy the earth. At that time, the earth will face real destruction.

If human beings really want to survive, they should restrain their greed and protect the earth. First of all, we should control the speed of global warming, protect the resources on the earth and not over-exploit. Although mankind is looking for a second earth now, it is still unknown whether it can be found. For the sake of future generations, everyone should do a good job of himself and strive to protect the earth's homeland.