A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...
Daily Galaxy on MSN1mon
Earth’s Oceans Were Once Green—And They Might Be Turning Green AgainFor most of human history, Earth ... image taken by Voyager 1. But for billions of years before that, our planet’s oceans ...
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