42,000 years ago Earth experienced "end of days" with mass extinctions

A reversal in Earth's magnetic field 42,000 years ago triggered climate catastrophes and mass extinctions. Can the field flip again?

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  • The Earth's magnetic field flipped about 42,000 years ago.
  • This reversal caused major climate changes, electrical storms, and mass extinction of life.
  • The so-called "Adams Event" also may have led to the demise of the Neanderthals and remarkable cave art.
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    3 stunning ways Earth and spacetime could be destroyed

    A well-known cosmologist comes out with very stark warnings about particle accelerators.

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    • Respected astrophysicist Martin Reese has serious misgivings about the safety of the Large Hadron Collider.
    • The collider could destroy us in 3 different ways, warns Reese.
    • Despite the dangers, innovation should continue but with caution.
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    10 Most Dangerous Scientific Experiments in History

    The times in history when science was deadly and dangerous.

    A masked ecologist militant is pictured with a barrel falsely contaminated during a demonstration against nuclear energy near the Tricastin nuclear power plant run by Areva in Bollene, southern France, on November 25, 2011, during a visit of France's Pres

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