How can we possibly know everything about exoplanets from just a single pixel? Will Mars be a good place for old people? Where does more emptiness come from if the Universe is expanding? 🦄 Support us on Patreon: https://patreon.com/universetoday00:00 Start01:43 [Tatooine] How do we know so much about exoplanets from single pixel images? 13:09 [Hoth] Is low gravity good for old people?