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A Grand Tour of the Cosmos

David Helfand / Columbia Instructor: David Helfand / Columbia

Witness colliding galaxies, explore stellar nurseries, see gravitational lenses, and literally observe the past unfold. We are currently in an unprecedented astronomical era thanks to powerful tools like the Hubble Space Te... read more

US $44.95
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Can a Machine Be Human? And Is That a Good Thing?

Glenn Ellis / Smith Instructor: Glenn Ellis / Smith

“Good afternoon Alice,” says Hal. “How’s the day’s work gone?” “It is the same as ever,” Alice replies. “Can I trust you?” “No I don't think that would be a very good idea.” An unremarkable conve... read more

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Climate Change, Mass Extinctions, and the Future of Life on Earth

Paul Olsen Instructor: Paul Olsen

Dinosaurs were amazingly successful animals that were dominant for over 130 million years and whose descendants are still with us today as birds. This course will focus on the history of th... read more

US $44.95
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