Space: Astronaut Ron Garan: Humans are Not From Earth, We are Earth

Astronaut Ron Garan has spent 178 days in space and has traveled more than 71 million miles during 2,842 orbits of our planet. He flew on both the US space shuttle and the Russian Soyuz spacecraft, lived on the international space station, and accomplished four spacewalks. His new book is “Floating in Darkness, a Journey of Evolution.” Space exploration, he says, is the secret to bringing humans together here on Earth.