Phil Sadler of the Smithsonian Astrophysical Observatory shows how to bring the cosmos down to size by using the processes of any scientific investigation: selecting a specific problem, collecting data, and building a model that both explains our observations and accurately predicts future findings.
Published 09/18/14
Conservation biologist Joe Kolowski leads us into the Peruvian Amazon, a rich, fertile, and essential part of our planet. He shows how the technique of "camera trapping" helps scientists to understand the creatures that move about the jungle—particularly mammals that may be endangered by oil...
Published 09/18/14