Does Triton go closer to Neptune every 'moon year'?

Triton orbits Neptune in the opposite direction to Neptune's rotation. And just like with Earth and Moon, tidal forces transfer angular momentum from the rotation of the planet to the orbit of its moon. read more

There are definitely interesting facts about Triton like the discovery of seasons on the moon, and strange looking terrain. But overall, one of the biggest reasons why it is hard to send something to Triton and why we may not see anything like it soon, is that Neptune and Triton are incredibly far away. read more

Tidal interactions also cause Triton's orbit, which is already closer to Neptune than the Moon's is to Earth, to gradually decay further; predictions are that 3.6 billion years from now, Triton will pass within Neptune's Roche limit. read more