Scientists have shown that the moon is moving away at a tiny, although measurable distance from the earth every year.
If you do the maths, you can calculate that 85 million years ago the moon was orbiting the earth at a distance of about 35 feet from the earth's surface.
This would explain the death of the dinosaurs. The tallest ones, anyway
Some scientists believe that the Moon will cease to be a satellite of the Earth and will forever fly away from its "suzerain", becoming an independent planet like Mercury.
In approximately 5 billion years, the sun will begin the helium-burning process, turning into a red giant star. When it expands, its outer layers will consume Mercury and Venus, and reach Earth. Scientists are still debating whether or not our planet will be engulfed, or whether it will orbit dangerously close to the dimmer star. Either way, life as we know it on Earth will cease to exist.