10 Billion Earth-like Planets May Exist In Our Galaxy

About 40 percent of red dwarf stars may have Earth-sized planets orbiting them that have the right conditions for life. Red dwarfs – which are smaller and cooler than our sun – are extremely common, making up 80 percent of stars in the galaxy. Their ubiquity suggests that there are tens of billions of possible places to look for life beyond Earth, with at least 100 such planets located nearby.