Yesterday, former International Space Station Commander Chris Hadfield fell from space like a meteor and gently touched down on his home planet after five months in a state of constant free fall. He was greeted with a recliner and a blanket, ready to cradle his thinner bones and atrophied muscles. Maybe, as he was comforted and challenged by gravity once again, his eyes turned back longing to the sky. I hope he knows that we did the same when he turned a camera lens into the eyes of the world.
Chris Hadfield is a triumph of science communication. He began by simply tweeting out pictures of the Earth in all its often-overlooked beauty from his Twitter account. As a consequence of these breathtaking pictures, and Hadfield’s famous response to a tweet from William Shatner, Hadfield soon became a social media phenomenon. At this writing, he has amassed 920,000 Twitter followers ...