Why Do We Think Triton Is a Captured Moon?
Discover the key evidence suggesting that Triton, Neptune's moon, is a captured moon. Explore its unusual orbit, composition, and unique features, uncovering the mystery of its origins.
Astronomy Picture of the Week – Crescent Neptune and Triton
This is a photo of a crescent Neptune and its largest moon Triton taken by the Voyager 2 probe in 1989. It is unique because such a picture could not be taken from Earth since Neptune never shows a crescent phase to sunward Earth.