"Triton is the largest moon of Neptune and one of the solar system's few geologically active moons. It may once have been a dwarf planet in the Kuiper Belt before being captured by Neptune's orbit."
- Retrograde Moon (Speed):
"Triton is the only known moon with a retrograde orbit, orbiting in the opposite direction to its host planet, Neptune. Scientists believe that it may once have been a dwarf planet captured by Neptune's gravity."
- Circular Revolution (Payout):
"Triton orbits Neptune in an almost perfect circle, but it is believed that Triton's orbit will decay one day. When that happens, Triton wil either collide with Neptune or break up in the planet's atmosphere, and the debris will form a new ring system."
- Natural Satellites (Payout):
"Moons are defined by their orbit around larger celestial bodies. Most moons revolve around a planet, but smaller bodies can have moons, too - even particularly large asteroids."
- Speed of Light (Speed):
"The speed of light is the rate at which light and all massless particles travel through a vacuum. While it can seen instantaneous from up close, over long distances this speed limit becomes very noticeable. The theory of relativity relates to the speed of light."
- Cosmic Gravity (Payout):
"Gravity is one of the fundamental forces and key to understanding how the universe works. Using Newton's principles, astronomers can explain how stars and planets form, predict their mass and motion, and infer the existence of dark matter."
- Goldilocks Zone (Discount):
"The Goldilocks Zone, also called the Habitable Zone, is the region around a star with conditions necessary for a planet that can sustain life. Planets like Earth, with surface water and breathable atmospheres, might be found in these zones in other systems."
Triton's planetary host is Neptune.
- Little Moon Lost (Rank 5):
"Triton has many geological similarities to Pluto. Its retrograde orbit leads astronomers to believe that it may have been a Kuiper Belt dwarf planet captured by Neptune's gravity."
- Mr. Moonlight (Rank 8):
"Triton is so cold that most of its atmospheric nitrogen has turned to frost. Because of this, the moon has a high albedo—the icy coating reflects sunlight and gives Triton its bright sheen."
- Triton - Real image above taken