What 'pristine relics' at the edge of the solar system reveal about how planets formed
October 08, 2026
October 08, 2026
PHILADELPHIA, Pennsylvania, Oct. 8 -- The University of Pennsylvania posted the following news:
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What 'pristine relics' at the edge of the solar system reveal about how planets formed
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As the sun's disk of gas and dust evolved, solid grains clumped into pebbles, then into city-sized bodies called planetesimals, which merged into the eight large planets in our solar system that formed more than 4 billion years ago.
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What 'pristine relics' at the edge of the solar system reveal about how planets formed
*
As the sun's disk of gas and dust evolved, solid grains clumped into pebbles, then into city-sized bodies called planetesimals, which merged into the eight large planets in our solar system that formed more than 4 billion years ago.