Fine tuning

Earth had a magnetic shield much earlier than thought

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In the Hadean period instead of much later, researchers say:

Earth’s earliest lands, hot and hellish, were sheltered from above. Researchers have found more evidence that our planet had a strong magnetic field 4.2 billion years ago, three-quarters of a billion years earlier than previously thought and just 350 million years after Earth formed. The field would have shielded Earth, protecting its atmosphere from being stripped away by high-energy particles from the Sun—and perhaps helping life gain a foothold.

Colin Barras, “New signs of a shielding magnetic field found in Earth’s oldest rock crystals” at Science

Amazing, all these accidents just happening at the same time in the same place for no reason at all. Or at least that’s the official story.

By the way, reader Ken Francis draws our attention to this vid on the probabilities of a single molecule forming by chance:

Hat tip: Ken Francis, co-author with Theodore Dalrymple of The Terror of Existence: From Ecclesiastes to Theatre of the Absurd

See also: What becomes of science when the evidence does not matter? (fine-tuning)

One Reply to “Earth had a magnetic shield much earlier than thought

  1. 1
    aarceng says:

    Maybe Earth was created with a magnetic field?

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