Astronomers using the European Southern Observatory telescope observed 102 of the most common stars, red dwarfs, in our galaxy over six years. They came up with an estimate of the planets in the habitable zones around each star.
160 billion red dwarfs, the fainter and cooler/longer lasting stars than the Sun exist in the Milky Way according to research team leader Xavier Bonfils. Bonfils is of the University of Grenoble in France. He stated, ''Because red dwarfs are so common this leads us to the astonishing result that there are tens of billions of these planets in our galaxy alone." There are probably 100 of these super-Earths within 30 light years of Earth, he said."