Reconstructing the Evolution of Stars

01/24/17 How astronomers read the evolution of the universe through the chemistry of the stars. Robert Simcoe

Is Earth Exceptional?

02/18/25 Is there life beyond Earth? So far, despite the discovery that there are billions of planets in our galaxy, and our increasingly sophisticated probes for life, we still don’t know. Life and the conditions for its emergence are both very complex phenomena. Mario Livio

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

Reading the Clouds to Understand Climate Change

10/22/13 Clouds and the particles they contain are essential information for climate science. Here's how scientists gather and decipher that information............... Daniel Cziczo

Clive Hamilton Talks about the Geoengineering Issue

10/28/13 A major ethicist and author talks about the geoengineering issue and his new book on that topic, Earthmasters

Psychiatric Drugs: Why They Often Fail Us Over Long Term

04/23/19 More than one in five Americans now takes a psychiatric medication. But long-term results are poor. Robert Whitaker, author of several books on this subject, discusses the problems of these meds and describes more effective initiatives.

How Delayed Release of Industry Data on Chemical Toxicity Impacts Health

08/21/18 Producers of perfluorinated alkylate substances (PFAS) withheld for decades the facts about the health and environmental threats of these ubiquitous toxins. Philippe Grandjean

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

Science Outreach Programs for Youth

10/16/12 How university educational outreach programs encourage high school students' interest in science. Irene Porro

Today's Featured Contributors

Featured Author

Sharon Levy

A well-known natural history writer's analysis of the Ice-Age extinctions in America

Featured Guest

Emily Monosson, Ph.D.

A toxicologist whose focus is on the impact of environmental toxins on evolutionary mechanisms