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

Nectar, Pollen and the Health of Bees

07/10/19 Nectar and pollen are sources of food for bees, but some of these sources may also help to reduce certain pathogens. Lynn Adler

Earth Life and Weird Life

12/17/15 The compelling search for entirely new forms of life elsewhere in our solar system and the universe. David Toomey

Why We Need an International Plan on Climate Change

07/28/17 The long struggle to commit the international community to prepare for the worldwide climate crisis. Henrik Selin

Take Action! How We Can Save the Environment

06/21/18 Harvard's Law School Environmental Clinic shows us how we can use the law to save our environment. Wendy B. Jacobs

Viruses: Threats in a Tiny Package

11/06/14 Viral infections that were once obscure are potentially global threats in a highly linked world. New tools are being deployed to identify and block these diseases. John Connor

Medicating ADHD: Diagnosis and the Long-Term Effects of the Medications

03/20/13 The potential danger of long-term use of ADHD drugs. Robert Whitaker

Innovations in Clean Water Technology

12/20/11 Desalination offers a solution to the water shortage problem... John Lienhard V

Designing Sustainable Urban Development

11/25/19 How the world-class Sustainable Design Lab at MIT combines architecture, engineering, physics --and creative genius-- to design the optimal urban environment. Christoph Reinhart

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

Philippe Grandjean, M.D., D.M.Sc.

A distinguished and award-winning scientist who has worked for decades to raise public awareness of the impact of environmental toxins on the developing brain