When Moon collapse with earth

The Moon cannot "collapse" with the Earth in the way you might be imagining. The Moon and the Earth are separate celestial bodies in space, and their relationship is governed by the laws of physics and gravity.

If you're asking whether there is a scenario where the Moon could collide with the Earth, that would require a significant change in their current orbits. Such an event is highly unlikely and would have catastrophic consequences for life on Earth.

The Moon is in orbit around the Earth due to the gravitational attraction between the two bodies. For the Moon to collide with Earth, either the Moon's orbit would have to significantly decay over a very long period of time (which is not currently happening and would take billions of years), or some extraordinary and catastrophic event, like a massive asteroid impact, would need to alter the Moon's trajectory.

However, it's important to emphasize that the likelihood of such an event occurring in the near future is extremely low. The Moon has been orbiting the Earth for billions of years, and the gravitational forces involved are relatively stable on human timescales.

In summary, while there are theoretical scenarios where the Moon could collide with Earth, they are highly unlikely and not something we need to worry about in the foreseeable future.