Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...
The fossil and genetic evidence agree that modern humans originated in Africa. The most genetically diverse human populations ...
CLEVELAND, Ohio — When a total solar eclipse crosses Ohio next month, modern astronomers will use the world’s most sophisticated computers and telescopes to measure, track and record it. But ancient ...
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