Space Daily September 19, 2026 • 22:30

During the Solar System’s first million years, its earliest outer worlds formed from material that was up to 92 percent heat-forged rock, while gas flowing through the young system filtered out much of the surrounding ice-rich dust. - Space Daily

Two chemical tracers in carbonaceous iron meteorites indicate that the earliest outer Solar System planetesimals contained only 8 to 17 percent fine matrix, extending aerodynamic sorting to the opening era of planet formation.

The first solid worlds assembled in the outer Solar System did not simply collect a representative scoop of everything around them. A new analysis of carbonaceous iron meteorites indicates that their… [+11994 chars]

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During the Solar System’s first million years, its earliest outer worlds formed from material that was up to 92 percent heat-forged rock, while gas flowing through the young system filtered out much of the surrounding ice-rich dust. - Space Daily

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