Understanding the Colors and Movements of Trans-Neptunian Objects: A Dive into Their Origins and Dynamics

The study analyzes 696 trans-Neptunian objects (TNOs) to explore their sizes, colors, and shapes, linking them to their formation regions and migration. Two main color groups, NIRF and NIRB, reveal distinct origins, with Cold Classicals being mostly NIRF and dynamically excited classes showing mixed populations. The findings support models of Solar System evolution and provide insights into planetesimal formation and Neptune's migration.