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Navigation Across the Oceans, Earth, and Space

“He pointed out to him the bearings of the coast, explained to him the variations of the compass, and taught him to read in that vast book opened over our heads which they call heaven, and where God writes in azure with letters of diamonds.” –Alexandre Dumas, The Count of Monte Cristo

Centuries ago mariners navigated across oceans using specialized tools such as sextants and chronometers. Today orbiting satellites provide essential global services, allowing people everywhere to navigate. In this talk, learn how astronauts experimented with techniques  similar to ship navigators centuries ago, and how space exploration opened up new frontiers and challenges for finding our way on the Earth and across space.

Dr. Andrew Johnston oversees research at the Adler Planetarium as Vice President for Astronomy and Collections. Johnston also performs research on environmental dynamics and geophysical processes on Earth and other terrestrial planets. He has used satellite remote sensing and field survey techniques to understand land cover change, patterns of human settlement, urban forest cover, forest canopy structure, and planetary landforms. Johnston has authored books, curated exhibitions, and developed planetarium and museum programs. He performs lectures on themes such as space exploration, astronomy, geography, earth science, climate change, and the history of navigation. He received his PhD in Geographical Sciences from the University of Maryland, College Park.
Our C2ST Speakeasy programs combine learning and a casual environment. Our Speakeasy series is held monthly. Pint Chicago has food and drink available for purchase before, during and after the talk. Science enthusiasts under the age of 21 are welcomed at Pint Chicago during our Speakeasy talks. Attendance is free, but registration is strongly encouraged. Seating is first come, first served.