Jeff Hoffman has floated in the vacuum of space. He’s looked down at our planet from above, seen the whorls of clouds, the vast oceans, and the crowded cities as webs of light.
Over five missions — including the first to the Hubble Space Telescope — Hoffman has spent 1,211 hours of his life in space.
“I believe there is life elsewhere in the universe,” Hoffman said in an intervew.
Fewer than 600 of the nearly 108 billion people who’ve existed on this planet have seen it from orbit. That rare experience, along with their advanced science degrees, makes astronauts seem uniquely qualified to answer the question: Are we alone in the universe? Read more…