In 2004, the Russian astronomers found that each year the Earth away from the Sun at an average of 15 centimeters. Among the possible hypotheses called plasma emission and solar wind, which lead to a decrease in the mass of the light and the weakening of the force of gravity, as well as the effect of the mysterious dark matter.
Japanese astronomers have found an explanation of gravity of the problem. Despite the difference in mass, the Earth still has a major tidal effect on the sun. Calculations researchers show that by circulation period around its own axis sun gradually decreases three milliseconds for 100 years, and the Earth is gradually removed. The average distance from Earth to the sun is an important astronomical parameter, which is called the astronomical unit. According to the most recent data, one astronomical unit is equal to 149597870.696 kilometers.