Geomagnetic reversal is imminent. Will all the compasses in the world need to be recalibrated when the magnetic polls reverse? The big worry realizing this is wait a minute, our magnetic field shields us from harmful charged particles from the sun. And so they get deflected towards the pole because that's what the magnetic field you ever see on a bar magnet, you know, the magnetic field lines. They go from pole to pole. But we have those in space. So if the pole reverses with the magnetic field going through zero, then we'll lose the Aurora Borealis.
Neil deGrasse Tyson and comic co-host Harrison Greenbaum answer fan-submitted Cosmic Queries that explore the techniques, inventions, and ideas for navigating the cosmos including celestial maps, GPS, the North Star, and more.
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