American scientists and Sweden indicated the conditions that may exist in the environment of Venus (Venus) suitable for life, and admit that in ancient times likely had no life on the planet present.
Astronomers have shown that if Venus orbits the Earth 16 days slower than the current, the temperature of the atmosphere and surface of the planet will be able to compare with the index of the earth.
According to scientists, about 715 million years ago, the climate of Venus is not suitable for life. However, if the surface under conditions previously not been deep ocean, even on the surface of it will exist in liquid water and appropriate conditions for primitive life.
The size, weight and acceleration due to gravity on the surface of the solar system can be compared to the conditions of life on Earth.