Looking for Signatures of Life on Mars

03/17/15 Was there ever life on Mars? How do scientists search for and analyze possible clues? Roger Summons

The Formation of Stars and Planets

09/15/15 How stars and their planetary systems form, and what the New Horizons mission to Pluto will reveal about the "fossil record" of our own solar system. Scott J. Kenyon

The Jurassic Genome

12/09/09 Genetic material in ancient fossils yields an amazing profile of extinct organisms. Chris Organ

How DNA is Folded in Cells and Why it Matters

10/14/14 How DNA is folded in the cell may shed light on cancer and other diseases. Jané Kondev

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

What Ails American Healthcare?

08/30/22 The U.S. healthcare system ranks last among 11 high-income countries. We spend more than other nations on medical care, but the service is seriously inadequate. What can be done? Melissa Gariddo

The Electric Eye: A Visual Prosthesis

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

Why Are We Spending Billions on Carbon Capture and Storage?

09/20/22 Despite the hype, carbon capture and storage (CCS) is not a solution to the CO2 problem. Charles Harvey

Renewable Energy Progress --Despite Resistance from the Fossil Fuel Industry

11/10/15 What we can do to speed up the transition to renewable energy, despite Big Oil's well funded resistance. Jeff Deyette

Today's Featured Contributors

Featured Author

Naomi Oreskes, Ph.D.

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

Featured Guest

Mercedes Lopez-Morales, Ph.D.

A astrophysicist who investigates the atmospheres of planets outside our solar system