Imagine living on a world where yesterday you needed a parka against a snowstorm, but today, without warning, it’s so hot the buttons on your shirt melt.
As of 17 December 2013, a total of 1055 confirmed exoplanets are listed in the Extrasolar Planets Encyclopaedia, including a few that were confirmations of controversial claims from the late 1980s. That count includes 801 planetary systems, of which 175 are multiple planetary systems. Kepler-16 contains the first discovered planet that orbits around a binary main-sequence star system.
The Kepler space telescope has done an epic job of finding and tracking potential habitable planets. A new glitch, however, means trouble for the spacecraft.