Earth’s oceans weren’t always blue, scientists say
But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...
New Research Suggests Earth’s First Oceans Weren’t Blue: They Were Green
Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...
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Could alien oceans be green: Earth’s past may hold the key to finding life elsewhere
Researchers have found that Earth’s first oceans may not have been blue at all like today. Instead, they may have gleamed in ...
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Scientists discover evidence that Earth's oceans were once green
The study sheds light on life during the Great Oxidation Event, a pivotal time roughly 2.4 billion years ago when ...