The Milky Way full of Earth - like planets

The conviction of the uniqueness of our planet very quickly loses its power. The more scientists study the universe around us, the more data they find that probably the Earth is not one and only.

milky way Just a few years ago, the statement that our planet is unique in the universe, and perhaps we will never find another suitable place to live was a very common opinion. The foundation of this belief is a large number of conditions that must be met in order to inhabit the planet. However, it appears that the scale is important - there are so many stars and planets in the universe that, even if only a small number of them is life friendly, it gives us a large number of worlds that may have its flora and fauna.

An international team of scientists using the HARPS spectrograph has measured the frequency of planets in the Milky Way called super-Earths. There could be tens of billions of them, and about 100 at a distance of not more than 30 light years from the Sun. But these figures apply only to those objects that orbit around stars in the zones that can be inhabited. Super-Earths are a rocky planets with a mass of one to ten times greater than the mass of Earth. Habitable zone is the area around the star where water may exist in liquid form.

Astronomers from the ESO (European Southern Observatory) analyzed the sample of 102 red dwarfs. These are the stars much cooler than our sun, but very common in the universe. Due to the fact that they emit less light the habitable area around them is located much closer than it is when it comes to the stars similar to the Sun.