From 2009 to 2013, the Kepler Space telescope looked for exoplanets \u2013 planets outside our solar system. It stared unblinkingly at a patch of sky which Dr Batalha had selected hoping to find not just exoplanets, but exoplanets in the Goldilocks zone. Find out what happened, what can go wrong and how Dr Karl\u2019s mind was blown to astronomical proportions.