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

Understanding How Life Began

04/09/10 Molecules in meteorites met with an optimal chemical environment on Earth. Alonso Ricardo

Reconstructing Evolution: A Molecular Time Machine

02/23/16 Tracing ancient genetic changes through extinctions and speciation events to reconstruct our DNA history. Betul Kacar

Human Earth

12/09/21 A distinguished geologist compares the human impact on our planet with the impacts of natural catastrophes over billions of years. Based on his book, A Brief History of Earth, this discussion is a sequel to an earlier conversation. Andrew Knoll

Understanding Coastal Ecosystems

06/18/15 A visit to the Helmuth Lab at NEU's Marine Science Center to learn how scientists investigate effects of changing climate on coastal ecosystems. Brian Helmuth

A Wearable Brain-Stimulation Device

03/22/21 Designing a wearable device to study brain function and dysfunction, with a goal of precise therapeutic interventions to treat neurodegenerative diseases Shawn Kelly

Environmental Contaminants and Autism

07/23/13 Determining the relationship between environmental contaminants and the global increase in autism. Marc Weisskopf

Energy Revolution!

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

Distinguishing Scientific Facts from Disinformation and Distortion

04/05/22 How can we distinguish scientific facts from disinformation? This Union of Concerned Scientists writer battles distortion on a regular basis. Elliott Negin

Today's Featured Contributors

Featured Author

Stuart B. Levy, M.D.

An international expert on the mechanisms of antibiotics resistance and a leader in creating public awareness

Featured Guest

Gigliola Staffilani, PhD

A theoretical mathematician who elucidates some of the most difficult forces and patterns of Nature