Scientists Discover 7 Billion Year Old Substance Thats Raising Serious Questions

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Scientists with the University of Chicago and Field Museum have discovered stardust that formed 5 to 7 billion years ago—the oldest solid material ever found on Earth.

The grains of stardust were trapped inside meteorites long ago—even before the sun formed—where they remained unchanged for billions of years, until one such meteorite fell 50 years ago in Australia. These “time capsules” offer clues about what was going on in our patch of the universe before the sun formed; for example, the grains suggest a surprising boom in star formation.

“This is one of the most exciting studies I’ve worked on,” said Philipp Heck, associate professor at the University of Chicago, curator at the Field Museum and lead author of a paper published Jan. 13 in the Proceedings of the National Academy of Sciences. “These are the oldest solid materials ever found, and they tell us about how stars formed in our galaxy.”
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Видео Scientists Discover 7 Billion Year Old Substance Thats Raising Serious Questions канала Did You Know ?