Earth's core cooling faster than previously thought, researchers say
The planet's core has been cooling for billions of years but perhaps "more rapidly than expected," which could expedite the end of life on Earth — though not for quite a while.
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Extract:
"When the planet goes cold, it'll lose its magnetic field, which shields Earth from harmful cosmic radiation. At that point, Earth would become a sterile, uninhabitable rock."
Not so fast. That harmful cosmic radiation can only destroy life on the surface. We now know that bacteria thrive many feet/meters below the surface. Also, sea floor vents demonstrate they can provide organisms with chemical sources of energy completely unconnected with solar radiation. Such pockets of life may exist on the moons of the outer planets if they are geologically active and have oceans. AFAIK, Europa and Enceladus are candidates.
racocn8
Level 9
Jan 19, 2022
0
Quite certain humans are providing a faster track to their demise than anything else.
ChestRockfield
Level 8
Jan 19, 2022
0
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