A decade ago, a band of astronomers set out to investigate one of the oldest questions taunting philosophers, scientists, priests, astronomers, mystics and the rest of the human race:…

Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about…

Scientists have for the first time found a planet outside of our solar system that’s home to water, in a major breakthrough in the search for habitable…