Roche Limit

In celestial mechanics, the Roche limit, also called Roche radius, is the distance from a celestial body within which a second celestial body, held together only by its own force of gravity, will disintegrate because the first body's tidal forces exceed the second body's gravitational self-attraction.^[1] Inside the Roche limit, orbiting material disperses and forms rings, whereas outside the limit, material tends to coalesce. The Roche radius depends on the radius of the first body and on the ratio of the bodies' densities.
The term is named after Édouard Roche , who was the French astronomer who first calculated this theoretical limit in 1848.

Wikipedia: Roche Limit

Looking through some older files and found this one from August, 2020  

An example of this phenomenon can be found in Neptune's orbit: the orbit of its moon Triton is gradually decreasing, such that in a couple billion years, it'll enter the Roche limit and will either break apart or collide with the planet's atmosphere. Either way, something unhealthy.