Triton (moon)

Triton is Neptune’s largest moon, unique because it orbits in the opposite direction of Neptune's rotation, suggesting it was captured rather than formed alongside the planet. It is cold and icy, with a surface covered in frozen nitrogen, methane, and carbon monoxide. Triton features geysers that spew nitrogen gas, indicating a possibly active internal makeup. Its thin atmosphere and icy landscape make it intriguing for scientists studying outer Solar System bodies. Despite its distance from Earth, Triton offers valuable insights into planetary geology and the dynamics of captured moons.