Featuring Will Smith, this episode of One Strange Rock interviews astronaut Chris Hadfield, who has seen the bullet holes left by asteroids on Earth’s surface. With the realization that our planet is vulnerable, the question becomes, could we ever survive elsewhere? One Strange Rock | S1, E6 Explore the World with National Geographic subscriptions: https://natgeo.com/ytngmagazine ➡ Subscribe: https://on.natgeo.com/4p5A0D6 ➡ Get more Nat Geo Full Episodes: https://on.natgeo.com/3V5ZfHI ➡ Get