Science ❯ Astronomy

Outer Solar System

Kuiper Belt Pluto Orbital Resonance Orbital Mechanics Icy Bodies Undiscovered Bodies TNO Characteristics Planetary Rings Uranus and Neptune Dwarf Planets Oort Cloud

Scientists Detect Ultra-Thin Atmosphere Around Tiny Kuiper Belt Object

The study points to a recent, ultra-thin gas layer that would fade within centuries without fresh supply.

Astronomers Detect Thin Atmosphere on Small World Beyond Pluto

First Trans-Neptunian Object Found in 10:1 Neptune Resonance

White House Budget Plan Could Cut Short New Horizons’ Kuiper Belt Exploration

New Dwarf Planet Discovery Challenges Planet Nine Despite 40% Simulated Odds