History of the Universe in One Hour

11/13/11 From the Big Bang to parallel universes... Max Tegmark

The Tumultuous Milky Way and Its Satellite Galaxies

08/23/11 How do spiral galaxies like our Milky Way form? Elena D'Onghia

How DNA is Folded in Cells and Why it Matters

10/14/14 How DNA is folded in the cell may shed light on cancer and other diseases. Jané Kondev

The Mystery of Animal Migration

09/17/24 How migratory creatures navigate so accurately to their seasonal destinations, sometimes thousands of miles away, is still often a mystery. What do scientists know, and what are they still trying to discover? Charles Walcott

What Arctic Caves Reveal about Ancient Climate Cycles

06/14/16 Arctic caves contain precise geological records of ancient ice-ages and subsequent melts that help scientists predict the effects of the present permafrost thaw. Jeremy Shakun

Earthquakes!

03/16/10 Earthquakes occur somewhere, every day. Can they be predicted, and if so, how? Colleen Dalton

Good Diet, Good Health

10/08/21 The typical American diet, heavy on processed food and excess sugar, is associated with high levels of diabetes 2, heart disease and other conditions. What is a genuinely good diet and how does it promote health? Walter Willett

They Didn't Believe It! The Germ Theory of Disease

02/03/20 Despite great medical accomplishments in ancient civilizations, then medical advances from the 17th century on, the connection between germs and disease was unknown.

The D-Lab at MIT: The People's Engineering Team

05/29/13 The award-winning D-Lab's unique approach to improving lives in the poorest nations. Amy Smith

Fracking: The Facts and Issues

11/12/13 A panel of experts presents the known scientific, health and environmental facts about fracking. Phartiyal_Pallavi, Aaron Bernstein, William Moomaw, Andrew Rosenberg

Today's Featured Contributors

Featured Author

Susanne Freidberg, Ph.D.

Outstanding resources on the environmental impact of modern agriculture and meat production

Featured Guest

Tanya Smith, PhD

An expert on reconstructing individual histories through fossil teeth