Exoplanets: The Nicest Neighborhoods in the Cosmos

Thanks to the work of the Kepler mission, NASA has confirmed the existence of hundreds of exoplanets and we’ve estimated the total number of habitable to be in the billions (with a “B”). But what does it take for one of those exoplanets to be considered habitable? The SciShow takes a look at that question and chooses the nicest neighborhoods in the universe. Shall we start packing our bags now?