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If you turned off the earth's magnetic field today, then presumably the atmosphere would be gradually stripped, away over millions of years. Similar to what hap
by hermitcrab 3y ago
If you turned off the earth's magnetic field today, then presumably the atmosphere would be gradually stripped, away over millions of years. Similar to what happened to Mars. But it would not make any immediate difference to the density.
- AnimalMuppet 3y agoNot immediate, no. But magnetic fields don't usually just switch off. If the planet didn't have one to begin with, then it probably doesn't have much of an atmosphere for long enough for advanced life.