What’s the deepest we’ve ever dug into the Earth?
What’s the deepest we’ve ever dug into the Earth? (Thinkstock)
What’s the deepest we’ve ever dug into the Earth?
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You asked us a question. "What's the deepest we've ever dug into the Earth?"
 
The deepest hole we have ever carved out is just 9 inches across.
 
It was started by scientists in 1970. It took more than 20 years to dig the record-holding hole.
 
How low did we go?
 
Can we get a drum roll? A whopping 0.2% of the distance to the center of the planet.
 
That is right. The 7.5-mile-deep Kola Borehole in Russia barely managed to scratch the Earth's surface. It never made it past the outermost layer of our planet.
 
Super high temperatures stopped the Russian scientists from going any farther.
 
They found some pretty cool things along the way. One of those things was free water. It was deeper than they ever thought it could possibly exist.
 
And they found 2-billion-year-old fossils. They were from single-celled marine plants found 4 miles below the Earth's surface.
 
An international team of scientists is hoping to go deeper.
 
But it has a big $1 billion price tag. It also has huge engineering roadblocks. The goal is to go where no one has gone before. The mantle.
 
Some of our biggest questions about the origins and evolution of Earth could get answers.
 
SO WHAT ARE WE WAITING FOR?!!
 
Oh, yeah. That is right. We are waiting for a billion dollars and better technology. Get on that science!

Source URL: https://www.tweentribune.com/article/junior/whats-deepest-weve-ever-dug-earth/

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CRITICAL THINKING QUESTION
Why did it take more than 20 years to dig the deepest hole?
Write your answers in the comments section below


COMMENTS (111)
  • andrew17-war
    12/22/2015 - 01:01 p.m.

    The reason it took more than 20 years is the fast that the Earths crust is just to strong for the technology we have. Also because it is extremely hot inside the Earth.

  • kevinx-tam
    1/04/2016 - 01:56 p.m.

    How much people did it take to dig that far :/

  • marlonx-tam
    1/05/2016 - 01:04 p.m.

    How come they didn't have a heat proof drill? Because the drill the Russian scientist had was stopped by the major heat down the in the crust.I think they can make dig way deeper than that if the had better technology.

  • christopher-hym
    1/05/2016 - 01:32 p.m.

    It took 20 years to dig the deepest hole because they had to get a lot of resources to dig the hole.

  • giovanni-hym
    1/05/2016 - 01:33 p.m.

    It took 20 years to dig the hole because of the very hot weather.

  • john-hym
    1/05/2016 - 01:35 p.m.

    I think it took 20 years to dig the deepest hole because super high temperatures stopped the Russian scientists from going any farther.

  • cooper-hym
    1/05/2016 - 01:37 p.m.

    It took twenty years to dig the hole because when they did it,they didn't have good enough technology.

  • zaire-hym
    1/05/2016 - 01:39 p.m.

    It takes more than 20 years to dig the deepest hole because of the hot places in the Earth

  • keyshawn-hym
    1/05/2016 - 01:41 p.m.

    It took more than 20 years to dig the deepest hole because they almost got to the center of the earth.That would take a very long time.

  • zane-hym
    1/05/2016 - 01:42 p.m.

    It took more than 20 years to dig the deepest hole because they wanted to brake the recod

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