Could the Moon ever crash into Earth?

Under current conditions, no—the Moon is moving away from Earth, not toward it. The usual reason is tidal interaction: Earth’s rotation and the Moon’s orbit exchange angular momentum in a way that slowly pushes the Moon outward.

Could it ever crash into Earth? In principle, something extreme could change the system’s evolution, but a direct impact is very unlikely. If the Moon were somehow forced inward, it would probably be torn apart by Earth’s gravity before impact once it reached the Roche limit, forming a ring or debris disk rather than arriving intact.

In the very far future, the Sun’s evolution could substantially alter the Earth-Moon system, but that is billions of years away and the exact outcome is uncertain. For any specific long-term scenario, the details depend on how the Earth-Moon system and the Sun evolve.