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FRI, 13 NOV · 80 ITEMS
"Asteroid formed at dawn of solar system" — Scientific American · Science & Medicine
Scientific American reports on a study of an asteroid (likely a meteorite or sample) that contains the mineral . The dolomite's formation required sustained internal heat from the asteroid's , taking at least a million years to build up. This provides a direct window into the conditions and timescales of the early solar system, showing that some asteroids were warm, watery worlds shortly after they formed.
The claim is based on a peer-reviewed study reported by Scientific American. As a secondary source without a direct citation to the primary paper in the highlight, the accuracy depends on the quality of the science journalism, but the specific finding about dolomite formation from internal heating is a standard scientific result from a published study.
This is genuinely new reporting, published by Scientific American on November 12, 2026, covering a recently published scientific study.
We covered a related story on October 25, 2026, about how Bennu asteroid samples revealed mixing of inner and outer Solar System material, another study using asteroid composition to understand the early solar system.