Astronauts do some amazing things. For one, they risk their lives by launching into space inside $2 billion rockets so that we can better understand our universe. They leave their families for months (sometimes years) at a time to explore the mysteries of space. And sometimes these heroic citizens take on some unique tasks. Take NASA astronaut Don Pettit, for example.
While orbiting the Earth on Expedition 31, he took a series of photographs. But not just your ordinary Blue Planet pictures we’ve all seen before. Don used a photography technique called “long-exposure” which involves using a long-duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements. The result was a series of absolutely breathtaking photos.
