August 18, 2024 at 3:28 pm
4.4 Billion Year Old Crystals Reveal That The Earth Had Both Fresh And Saltwater Present Much Earlier Than Previously Believed
![Source: Hugo Olirook](https://twistedsifter.com/wp-content/plugins/lazy-load-0.7/images/1x1.trans.gif)
These zircons offer valuable information that was previously hidden.
These zircons offer valuable information that was previously hidden.
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