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

Using Genetics to Trace Human History

07/08/16 An explanation of how modern genetics analysis confirms ancient human migrations, such as the Indo-Europeans. Nick Patterson

Cell Architecture: Self-Organization and Scaling

10/08/19 A cell's size and the proportions of its components are strictly determined, but where do the rules come from? Scientists are still trying to figure that out. Jané Kondev

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

The Widespread Resistance to Antibiotics: Stuart B. Levy, M.D.

08/13/13 Exploring the "antibiotic paradox" and the decades-long efforts of Dr. Stuart Levy to avert the danger we have created

Nutrition for a Healthy Aging Brain

11/08/22. Can corrective nutrition prevent or reverse cognitive decline among older adults with bad diets? Here's a forthcoming study. Susan Roberts

Harnassing Geothermal Energy

10/11/22 Geothermal energy is an ideal source of renewable energy, but it can be hard to access. Here's a plan. Paul Woskov

The Urban Future: On Earth...and Elsewhere

12/05/23 GBH Forum Network webinar (noon). By 2050, some 75 percent of the world population will live in cities. Future urban design will emphasize not only innovative architecture and engineering, but optimal environmental and social aspects of city dwelling also. The urban future might also include settlements beyond Earth. Justin Hollander

Today's Featured Contributors

Featured Author

Naomi Oreskes, Ph.D.

An indispensable resource about corporate deception tactics --from tobacco to climate change

Featured Guest

Andrew Knoll, Ph.D.

An international expert on the interdependence of the evolution of early life and the young Earth