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What do aliens look like? The clue is in evolution

Speculating about what aliens look like has kept children, film producers and scientists amused for decades. If they exist, will extra terrestrials turn out to look similar to us, or might they take a form beyond our wildest ...

dateAug 19, 2016 in Astronomy
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How did phosphate get into RNA?

The phosphate ion is almost insoluble and is one of the most inactive of Earth's most abundant phosphate minerals. So how could phosphate have originally been incorporated into ribonucleotides, the building blocks of RNA, ...

dateAug 18, 2016 in Biochemistry
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