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7-Billion-Year-Old Stardust Discovered in Murchison Meteorite
A 7-billion-year-old grain of stardust from the Murchison meteorite is older than our Sun. Key Takeaways Scientists found 7-billion-year-old stardust inside the Murchison meteorite, making it the oldest solid material on Earth. The stardust predates our Sun and solar system, revealing insights into the galaxy’s history. Researchers dated the grains by analyzing their exposure to…