Astronaut and AGU member Andrew Feustel delivered the 2011 Public Lecture on Sunday, 4 December. Feustel gave a fun and engaging talk full of amazing photos about his two space missions: STS‐125, during which he and his fellow crew members extended the life of the Hubble Space Telescope, and STS‐134, the space shuttleEndeavour's final mission, which delivered the Alpha Magnetic Spectrometer (AMS) to the International Space Station (ISS). AMS is a state‐of‐ the‐art instrument designed to study matter and the origin and structure of the universe. RegularEos readers will remember a July 2011 article aboutEos in space, complete with a photo of an issue of Eos floating in front of the ISS window (Eos, 92(28), 236, doi:10.1029/2011EO2800 08). As the enthusiastic AGU member who took that issue into space, Feustel spoke from the unique perspective of someone who was trained in the geosciences before becoming an astronaut. Thus, he discussed the role of astronauts as explorers of Earth from space as well as the importance of geological observations on the Moon and the exploration of the cosmos. To thank him for his dedication, AGU president Mike McPhaden joined more than 160 other attendees at the Public Lecture and presented Feustel with a framed picture of the article featuring Eos in space.