Our planet's history is written in its rocks. You can traverse eons by brushing your fingers over the layers of a cliff wall. But beyond a certain point, the record goes blank. Though the Earth is roughly 4.5 billion years old, the oldest-known rocks date back to only around 4 billion years ago. The relentless […]
The Ghost of Earth's Magma Oceans Found in Ancient Greenland Rocks
Singularity Hub - 14 Mar 2021 22:30
Our planet's history is written in its rocks. You can traverse eons by brushing your fingers over the layers of a cliff wall. But beyond a certain point, the record goes blank. Though the Earth is roughly 4.5 billion years old, the oldest-known rocks date back to only around 4 billion years ago. The relentless […]
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