Astronomers and planetary scientists thought they knew how to find evidence of life on planets beyond our Solar System. But, a new study indicates that the moons of extrasolar planets may produce “false positives” adding an inconvenient element of uncertainty to the search. More than 1,800 exoplanets have been confirmed to exist so far, with … Continue reading "Moons of Confusion: Why Finding Extraterrestrial Life may be Harder than we Thought"