The Moon will collide with the Earth after 65 billion years

An American planetary scientist predicts the Moon will crash into Earth after 65 billion years.

The Moon may collide with Earth after 65 billion years.(Artwork: YouTube.)

Currently, the Moon's orbit around the Earth is moving away at 3.8 cm annually, but scientist Jason Barnes of the University of Idaho predicts that the natural satellite will start to get closer and spiraling inward and the merger with Earth will take place after 65 billion years, Forbes said on January 31.

"In fact, the Moon will come so close that it moves in spiral form, dissipating its kinetic energy in the collision and merging with the Earth , " Barnes said.

Researchers believe that the Moon formed 4.5 billion years ago from the debris of a planet-sized collision with an early Earth and revolved around Earth afterwards.

However, we may not have a chance to witness the collision between the Moon and the Earth. In about 6 billion years, the Sun between the "Red Giant Phase" stage. The Sun will use up nuclear energy and the star's outer shell extends towards the Earth, burning everything on the way and sweeping away life.