Alumni astronauts (from left) Mike Fincke, Cady Coleman, and Greg Chamitoff send greetings to MIT from the International Space Station in this video, downlinked from the ISS in May 2011. Cady was winding up a six-month stay on station; Mike and Greg had recently joined her, flying up on STS-134, the last mission of the Shuttle Endeavour and the next-to-last flight of a Space Shuttle.