trans-Neptunian objects

Trans-Neptunian objects (TNOs) are celestial bodies located beyond Neptune, studied through various missions.

Trans-Neptunian objects (TNOs) are a category of celestial bodies in our solar system located beyond the orbit of Neptune. NASA's New Horizons mission, which flew by Pluto and Arrokoth, is the only mission primarily targeting TNOs. Recent studies using the James Webb Space Telescope have expanded our understanding of these objects, revealing their ancient surfaces and complex compositions. Research programs like 'DiSCo-TNOs' focus on analyzing the characteristics of over 75 TNOs to uncover insights about the solar system's history.