Due to stylish censuses of planets in our galactic neighbourhood, like Nasa's Kepler mission, everyone knows that planets are frequent and that small, Earth-sized planets aren't the exception, nonetheless the rule. Most scientists agree within the current day that life throughout the Milky Method, and completely different galaxies, is frequent. Nonetheless, most of that life is throughout the best doable kind, microbes. Completely different galaxies, like Andromeda, are so monumental that, statistically, life in them is sort of positive. Severe about it on this method, life on Earth can seem pretty irrelevant.