Earth has only 1.75 billion years life

A recently graduated student named Andrew Rushby from the University of East Anglia in Britain, recently created two equations able to estimate how long life on Earth can continue to exist. Both equations are designed to calculate the length of time, the Earth is expected to remain within the habitable zone of our solar system.

The habitable zone is the area where the solar system planet is neither too close to the sun to prevent the existence of water, not too far from the sun to freeze water. According to the equations, the Earth has only 1.75 - 3.25 billion years of life.

According to scientists, because the sun comes being obsolete, it will become a big star and very bright. After getting bigger and hotter, the Earth will move from being in the habitable zone as it is now, for being too hot to support liquid water.

After moving planet outside the habitable zone, he will be in what astronomers call the hot zone. In the hot zone, water and life as we know will cease to exist on Earth. The purpose of these equations was not to predict how long it can continue life on Earth.