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SETI Institute

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Caption

Three phases in the evolution of the outer solar system. (A) At the time of pebble collapse into comets, pointing to the likely origin region of asteroids (AST), Jupiter-family comets (JFC) and long-period comets (LPC); (B) At the time when Neptune scattered comets into a Scattered Disk of the Kuiper Belt; (C) After the Sun had left the birth star cluster and a planet instability created the outer Oort Cloud.

Credit

Jenniskens et al. (2024) Icarus

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