When will the earth end?

I have heard several times that the earth will end, such as the movie 2012. Some said to me that in another year the world will end. Earlier in the 20th century, the earth would also, so to speak, perish. Now the question is whether you actually know exactly when the earth will end. If you know when the earth will end, would you also explain how the earth will end?

Asker: Eddie, 13 years old

Answer

In five billion years, the fuel in the sun will be used up, and it will swell enormously in its death throes. Enough to burn everything on the surface of the earth. This is not obtained from some holy book, the feverish dreams of a prophet, a questionable theory or tinkering with numbers plucked from thin air. That’s hard science, based on observations of the fate of entire arrays of stars – and confirmed by measurements of nuclear reactions. After all, stars are gigantic nuclear reactors.

All other dates you come across, especially those in the near future, are bullshit.

Although we may not get another five billion years. Because we have already wiped each other out with nuclear bombs, for example. But there is no date to put on it.

Perhaps humanity will die sooner because of the impact of a gigantic comet. That’s what happened to the dinosaurs 65 million years ago. In fact, life on Earth has been almost completely wiped out several times over the past few billion years by such a direct hit. Although there were always some animal and plant species that survived. Statistically, there is a very good chance that it will hit a few more times in the coming hundreds of millions of years – unless we have made an efficient air defense of our nuclear bombs in the meantime. But even if you can say that there is a reasonable chance of an impact, no one can predict when it will.

By the way: within five billion years, humans will no longer exist. We have long since evolved into a completely different species. 0.07 billion years ago our ancestors looked like little monkeys, not to say like shrews…

Answered by

Peter Van Dooren

science journalist with broad knowledge

When will the earth end?

Institute of Tropical Medicine Antwerp
Nationalestraat 155 2000 Antwerp
http://www.itg.be/

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