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Researchers reveal the Origin Story for Carbon-12, a Building Block for Life

These computer simulations show the structures of carbon-12 in the unstable, excited Hoyle state and as a stable ground state, the stuff of life. Image courtesy of James Vary.

With the help of the world’s most powerful supercomputer and new artificial intelligence techniques, an international team of researchers has theorized how the extreme conditions in stars produce carbon-12, which they describe as “a critical gateway to the birth of life.”

The researchers’ fundamental question: “How does the cosmos produce carbon-12?” said James Vary, a professor of physics and astronomy at Iowa State University and a longtime member of the research collaboration.

“It turns out it’s not easy to produce carbon-12,” Vary said.

It takes the extreme heat and pressures inside stars or in stell...

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