Thinking in Planetary Time ...

Rick Prelinger is the founder of the Prelinger Archives in San Francisco, whose moving image holdings may be found online at ...

The Catholic Church has been undergoing a long, slow shift, playing out on the timescale of centuries: a shift to distance ...

Dr. Priyamvada Natarajan is a Professor in the Departments of Astronomy and Physics at Yale University. Her latest book is Mapping the Heavens: The Radical Scientific Ideas That Reveal the Cosmos. No ...

Monica L. Smith is an archaeologist whose principal research interests are the human interaction with material culture, urbanism as a long-term human phenomenon, and the development of social ...