Odd Couple: UV Radiation and the Origin of Life

11/28/17 A very exciting investigation of the possible role of ultraviolet radiation in the emergence of life --on Earth and elsewhere. Sukrit Ranjan

Formation and Diversity of Planetary Systems

11/08/21 Advanced technology reveals a super-abundance of planetary systems in the universe. And astronomers are investigating how these systems form as well as their amazing diversity. Joan Najita

Mass Extinctions

04/09/19 What caused Earth's five mass extinctions --and most important--are we headed for a sixth? Andrew Knoll

Antarctic Fishes: Models for Climate Change and Human Disease

07/09/13 the unique "antifreeze" blood and skeletal mutations of the Antarctic Icefishes provide insights into both climate change adaptations and human disease. H. William Detrich, III

Saving the Himalayas

12/22/15 Can the great Himalaya ecosystem adapt to the dual assault of rapid development and climate change? Maharaj Pandit

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

An Update on Those "Forever" Chemicals

10-17-23 WGBH Forum Network webinar PFAS, a group of chemicals added to many everyday products, became a concern years ago among medical researchers, but governmental agencies were slow to impose regulations. Philippe Grandjean

How Effective Are Vitamin D Supplements?

04/23/24 Promoted for years as a means to strengthen bones and lower risk of multiple diseases, improved studies by JoAnn Manson and others revealed that Vitamin D supplements were not very effective at all. Natural sources, including sunshine, are much better. It’s important to understand why. JoAnn Manson

The War on Science: What We Need to Do

11/27/18 The anti-science mentality and policies threaten public health, environment, and safety --and also our progress in many scientific fields. What we need to do. Andrew Rosenberg

Hard Facts about Carbon Capture and Storage

05/18/22 Just how effective is Carbon Capture and Storage (CCS), the much-promoted solution to the excess atmospheric CO2 from fossil fuels? June Sekera and Neva Goodwin

Today's Featured Contributors

Featured Author

Jon Beckwith, Ph.D.

A great scientist's dual role as geneticist and social activist

Featured Guest

Miaki Ishii, Ph.D.

A seismologist whose research is on the cutting edge of investigations of the deep Earth