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A Buried Chunk of Alien World Could Be Behind a Weak Spot in Earth’s Magnetic Field – ScienceAlert

There’s a growing weak spot in Earth’s magnetic field. Scientists say it may be due to giant pieces of an ancient planet buried inside Earth.

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Earth’s suit of geomagnetic armor has a chink, and it’s growing.
A weak spot in our planet’s magnetic field, located above the southern Atlantic Ocean, has been increasing in size over the last two centuries, and it’s starting to split in two.
For those of us on the ground, this isn’t cause for concern: The protective field continues to shield the planet from deadly solar radiation. But the South Atlantic Anomaly, as it’s appropriately named, does affect satellites and other spacecraft that pass…

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