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Far away in outer space, there is a planet hovering 635 light-years away from where you are sitting right now. It is the first planet discovered within the habitable zone of a star that behaves like a Sun. Its name is Kepler 22-b. When a planet is located in the habitable zone of a star, it means there is a chance of liquid water on its surface. And where there is water, there is also the possibility of life. And human life. How long would it take you to get to Kepler 22-b? What would the climate be like there? And why would you need to work out a lot before reaching this new planet? What If in other places: What If in English: http://bit.ly/facebook-whatif What If in Spanish: http://bit.ly/YT-Spanish-what-if What If in Italian: http://bit.ly/Cosa-succederebbe-se What If in French: http://bit.ly/Et-si-youtube What If in Mandarin: http://bit.ly/YT-Chinese-what-if What If in Hindi: http://bit.ly/what-if-hindi-youtube Podcast: http://bit.ly/yt-what-if-show-podcast What If is a documentary miniseries that takes you on an epic journey of hypothetical worlds and possibilities. Come with us on an imaginary adventure through time, space and chance. We'll do our best to explain complex topics in a fun way. Produced with love by Underknown in Toronto: https://underknown.com