Scientists recently announced that the galaxy is teeming with life, and the nearest habitable world is near enough to see with the naked eye. It’s just one of around 40 billion ‘Earths’ in the Milky Way. According to researcher, Andrew Howard said: “Potential sites for life to get started are abundant in the galaxy.” Continue reading for a video and more information.
After accounting for holes in the Kepler spacecraft data, scientists estimated that 22% of all the sun-like stars are circled by a planet that could be suitable for life. Many are roughly Earth-size and lie in the ‘habitable’ or ‘Goldilocks’ zone – the orbital band close enough to a star for temperatures to be just right for life.
By definition, habitable zone temperatures are mild enough to allow oceans and lakes of liquid water.
In a galaxy of 200 billion stars of various types, this works out at 11 billion planets.
But factor smaller, dimmer red dwarf stars, and the number of planets with mild temperatures similar to Earth rises to 40 billion.