Donald Gansauer writes from Canton: "Your column often reports on the transits of the International Space Station ... I made sure to look for it. Was it reflected sunlight that I saw, or is there an actual light bulb on the station that gleams on the Earth?" Like Motel 6? "We'll leave the light on for ya..." Nah. It's all just sunlight, reflected off the station's solar panels and other shiny surfaces. That's why the ISS often "disappears" suddenly when it moves into Earth's shadow.