“Whether we’re alone in the universe depends on whether alien societies overcame the climate change their advances created, says astrophysicist Adam Frank at the University of Rochester who argues that argues that we have never been in a better position to answer question of are we alone , thanks to a revolution in our knowledge gained by powerful telescopes like Hubble and space probes like Voyager. Indeed, the chances that there has never been another civilization in the universe are as low as one in ten billion trillion. But whether there is still one out there today is a more complicated question.” (more…)