On October 14, former International Space Station Commander Chris Hadfield will be at the Museum for his Hayden Planetarium Program, You Are Here with Astronaut Chris Hadfield. He will be showing photographs he took while on the ISS, such as this image. Commander Hadfield writes: “The Richat Structure in Mauritania, also known as the Eye of the Sahara, is a landmark for astronauts. If you’ve been busy doing experiments and haven’t looked out the window for a while, it’s hard to know where you are, especially if you’re over a vast 3,600,000-square-mile desert. This bull’s-eye orients you, instantly. Oddly, it appears not to be the scar of a meteorite but a deeply eroded dome, with a rainbow-inspired color scheme.” A limited number of tickets are still available for this event.