Science Speculations: Time Travel

03/15/18 How realistic is the time-travel concept and how would time machines work? David Toomey

How Solar Systems Form: Puzzles and Possibilities

03/11/14 Astronomer Joan Najita explains the challenge of understanding how planetary systems are created.

Scale-Free Complex Networks: Albert-László Barabási, Ph.D.

08/05/13 A visit to the Barabási Lab at Northeastern University to learn how scale-free complex networks affect scientific perspectives

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

The Real Key to Feeding the World

09/20/21 The distinguished scientist and author of "Growing a Revolution: Bringing Our Soil Back to Life" explains the destructiveness of industrialized agriculture and shows how to feed the world while restoring the soil and environment. David Montgomery

How Restorative Development Can Address Climate Change

09/13/16 An international authority on the dual impacts of climate change and environmental destruction discusses the urgent need for a restorative development policy. William Moomaw

The Electric Eye: A Visual Prosthesis

10/26/10 A major breakthrough in the restoration of vision. Shawn Kelly

Spillover! Virus Transmission from Animals-to-Humans

07/14/21 Many viruses, including coronaviruses such as covid-19, originate in wild animals. Understanding the transfer and infection process is a major concern in medical science today. Jonathan Runstadler

Replacing Plastic: The Merits of Shrilk

02/04/14 Materials scientist Javier Fernandez discusses the "plastisphere" crisis and how it motivated the development of biodegradable "shrilk."

A Potential Solution to the Methane Problem

03/29/22 An innovation attracting great interest: an abundant, inexpensive clay might be used to remove the greenhouse gas methane from the atmosphere. Desiree Plata

Today's Featured Contributors

Featured Author

Robert Pollin, Ph.D.

This book is essential reading for a real understanding of the relationship between our economic system and the global climate crisis.

Featured Guest

Amala Mahadevan, Ph.D.

A physical oceanography scientist investigates important relationships between the oceans and climate change