Noguchi took this photo from his berth aboard the International Space Station on April 5, 2010, as the Station flew through Earth's aurora at 28,000 kilometers per hour. A geomagnetic storm was exciting an unusual level of auroral activity at the time. A Russian Progress module is visible docked to the Station in the middle ground. The photo appeared on Noguchi's Twitter feed, followed at the time by 174,000 people. Phil Plait has a little more information on what we can see in the photo.