Scientists say that the number of intelligent civilizations is growing with great speed.
Scientists from the UK and the Netherlands determined the pace at which life spreads through the Universe.
The authors of the research said that depending on the analytical model, the number of planets with intelligent civilizations increased from 2.5 to 20 times.
Experts are of the opinion that the trend of increasing number of intelligent worlds will remain hundreds of billions of years, and their end will be inevitable then when it dies most of the stars.
Previously, scientists have carried out research work to study the effect of supernovae type II and gamma-ray bursts. Experts believe that these phenomena can become the cause of extinction of civilizations