In this Episode <br />1. Humans have always been explorers, leaving their home shores to search for new environments . <br />2. The challenges of finding optimal environments for humans. <br />3. The possibility that Venus was more hospitable to life than Earth. four billion years ago . <br />4. The future worlds that humans may inhabit. <br /><br />Follow for more videos. Thanks <br /><br />#TheFleetingGraceoftheHabitableZone <br />#cosmosspacescience <br />#Neildegrassetyson <br /><br />
