there is no evidence to suggest that Neptune's moon Triton is getting closer to its planet. However, I can provide information on what might happen if such a collision were to occur.
If Triton were to collide with Neptune, the exact outcome would depend on various factors, including the angle, velocity, and mass of the collision. However, in general, a collision between a moon and its planet would likely result in significant destruction and alteration of both objects.
Given that Neptune is a gas giant with a massive atmosphere and a relatively small solid core, it is possible that if Triton were to collide with Neptune, it would be torn apart and fragmented due to the immense gravitational forces of the planet. The debris from the moon would then likely become part of Neptune's ring system or form new moons around the planet.
It is unlikely that Neptune would fully absorb Triton as a single intact object. Instead, the collision would likely lead to a disruptive event, causing Triton to disintegrate and merge with Neptune's system in various ways.
It is worth noting that scientific knowledge and understanding can evolve with new discoveries and research, so it is essential to consult the latest information from reliable sources to stay updated on any developments regarding Triton or other celestial bodies in our solar system.