4.4 billion years ago : Earth’s Timekeeper Zircon and Cosmic Chronicle
”It seems you’re referring to a piece of Earth’s history that dates back billions of years. Geologists have found zircon crystals that are about 4.4 billion years old, which are…
”It seems you’re referring to a piece of Earth’s history that dates back billions of years. Geologists have found zircon crystals that are about 4.4 billion years old, which are…
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