/sci/ - Science & Math » Thread #12144789

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how old is the Earth?

Anonymous Mon 21 Sep 06:14:48 2020 No.12144789 View Reply Original Report

Quoted By: >>12144808 >>12144812

do we REALLY know? they say its billions, but even scientists will tell you thats what they call a "guesstimate". so far we've only truly counted a little over 2000.

Anonymous

Anonymous Mon 21 Sep 2020 06:27:56 No.12144807 Report

Quoted By:

Yes, this is a total mystery. The best numbers people got are from:
1. radiometric dating of rocks
2. measuring cosmic radiation levels and parallaxes of galaxies or something like that

Anonymous

Anonymous Mon 21 Sep 2020 06:28:53 No.12144808 Report

Quoted By: >>12144846

>>12144789
Definitely more then 6000.

Anonymous

Anonymous Mon 21 Sep 2020 06:32:02 No.12144812 Report

Quoted By:

>>12144789
I never understood this either I watched the cosmos episode where they explain it, but how do you know the meteors are the same age as the earth?

Anonymous

Anonymous Mon 21 Sep 2020 06:49:20 No.12144846 Report

Quoted By:

>>12144808
This. It's 7500 give or take.

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