A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...
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10 Biggest Unsolved Mysteries About Planet Earth
Where did all the water come from? Water, water everywhere. It covers 70 percent of Earth’s surface and earns it the nickname “the blue planet.” And yet… where did it come from? How is it so abundant ...
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Are We Martians?
How did life begin on Earth? While scientists have theories, they don’t yet fully understand the precise chemical steps that ...
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