German scientists, using the Kepler orbiting telescope, discovered two terrestrial exoplanets covered with oceans. Both planets orbit a star called Kepler-62, which is 720 light-years from Earth.
The star Kepler-62 itself belongs to yellow dwarfs, it is one third smaller than our Sun. Scientists have determined that only seven planets revolve around it, of which only two are terrestrial planets.
One of the factors that speaks in favor of the presence of life on these two planets are the periods of rotation of the planets around their own sun. For one, it is 122 days, for the second - 267 days.
Both planets are completely covered by oceans, so life on them can be represented by marine organisms. German scientists believe that even an intelligent civilization is possible there, which may well stand at a higher level of development than the earthly one.
In this "solar" system, there are two more planets that are gas giants, like our Jupiter, and three planets located too close to the star for them to have life similar to Earth.
The Kepler orbiting telescope is specifically designed to detect and study exoplanets (planets outside the solar system, either freely moving in space or revolving around their own suns). The telescope is a NASA telescope satellite. With its help, many sensational discoveries have been made.