They Didn't Believe It! Dark Matter

12/02/19 Most of the matter in the universe is invisible --and scientists still do not know what it is. This is a brief story of how the idea of dark matter was very slowly accepted.

The Dark Age of the Universe

05/12/15 What scientists are learning about the "dark ages" of the early universe -before light emerged. Lincoln Greenhill

Ancient Environmental Shifts and Evolution

05/03/21 A warming climate led to the emergence of grasslands, which led to major evolutionary changes. Aly Baumgartner

A Spotlight on the Impact of the Wildlife Trade

07/14/20 The persistence of the international wildlife trade is destructive for wildlife, ecosystems, environment, and human health. Maria Ivanova and Candace Famiglietti

Living Dirt: Soil’s Microbe Ecosystems

05/10/21 Healthy soil depends on healthy microbial ecosystems. These invisible communities have a very complex relationship. Kristen DeAngelis

What to Know about Geoengineering

04/22/16 The excess CO2 in Earth's atmosphere will remain for hundreds of years. An atmospheric scientist explains the need to reduce that excess as we shift to renewable energy. Daniel Cziczo

Neural Disruption and Motor Dysfunctions

12/10/20 How neuroscientists probe the neural mechanisms behind disorders such as Parkinson's disease and other motor dysfunctions.. Jill Crittenden.

Breakthroughs in Nanotechnology

09/27/16 Advances in nanotechnology are revolutionizing medicine. A leader in the field describes recent developments and his commitment to making them available to a wide public. Sameer Sonkusale

Carbon Capture and Storage Will Not Reduce Global Warming

02/09/24 GBH Forum Network webinar (noon ET) The extreme level of atmospheric CO2 is well beyond a “capture and storage/sequestration” solution, yet the hype persists that some clever extraction innovation will resolve the problem. Charles Harvey

Energy Revolution!

05/21/15 Conversion to wind and solar power is entirely possible now in the U.S. Mara Prentiss

Today's Featured Contributors

Featured Author

Emily Monosson, Ph.D.

An evolutionary toxicologist considers why some organisms adapt to our toxic world while others do not.

Featured Guest

Roger Summons, Ph.D.

A major contributor to the identification of biomarkers in ancient Earth rocks and oils, as well as extraterrestrial biogeochemical fossils