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18-Jun-2018 20:20

From the fragments, scientists calculated the relative abundances of elements that formed as radioactive uranium decayed over billions of years.

"It was not until the 1950s that the age of the universe was finally revised and put safely beyond the age of the Earth, which had at last reached its true age of 4.56 billion years," Lewis said.

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Previously she was an assistant editor at Scholastic's Science World magazine.

Jeanna has an English degree from Salisbury University, a Master's degree in biogeochemistry and environmental sciences from the University of Maryland, and a science journalism degree from New York University.

"Physicists suddenly gained a new respect for geologists." For the record, the universe is now thought to have debuted, at least in its latest incarnation, about 13.7 billion ago.

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Before becoming managing editor, Jeanna served as a reporter for Live Science and for about three years.

This week, Cherry Lewis of the University of Bristol presented a talk about the history of dating the Earth as part of the BA Festival of Science in York, England.