There’s a rule of thumb that can come in handy when you hear about new planet discoveries from the Kepler space mission. If they’re talking about a handful of new worlds orbiting distant stars, it’s ...

Data from the Kepler project has confirmed a new world that fulfills the telescope's goal of locating Earth-sized planets ...

An exosyzygy – an alignment of three celestial objects around another star – is predicted to happen later this year, but it seems likely that we won't see it happen ...