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

Our Robots, Ourselves

02/10/16 The author of "Our Robots, Ourselves" discusses the limits of robot autonomy. David Mindell

Biodiversity in the Sixth Mass Extinction

03/19/24 A prominent biologist explains the crucial importance of biodiversity for life on Earth, and how the sixth mass extinction fractures that stability. Michael Reed.

Our Record-Breaking Global Heat

01/07/25 Why climate scientists are very concerned about the global heat trend, how they analyze it, and what must be done. Mathew Barlow & Jeffrey Basara

How Plankton Blooms Absorb CO2

02/24/15 What causes the massive plankton blooms that are necessary for stabilizing Earth's CO2 balance, and how does the process work? Amala Mahadevan

How Environmental Pollutants Impair Brain Development

04/08/14 A world authority on how environmental toxins affect brain development brings the evidence to the general public. Philippe Grandjean

Nanotechnology in Medicine

04/20/17 A tour of some innovative medical nano-devices at the Tufts University Nano Lab. Sameer Sonkusale

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

Henrik Selin, Ph.D.

An international expert on climate change and environmental policy who emphasizes the need for global action on climate change

Featured Guest

Jing-Ke Weng, Ph.D.

A leading researcher in the potential medical properties of plants