Odd Couple: UV Radiation and the Origin of Life

A very exciting investigation of the possible role of ultraviolet radiation in the emergence of life --on Earth and elsewhere. Sukrit Ranjan

How Solar Systems Form: Puzzles and Possibilities

Astronomer Joan Najita explains the challenge of understanding how planetary systems are created.

Self-Defense Mechanisms of the Cell

The cell's self-defense repair kit against hereditary, environmental, and other threats. Sushil Alimchandani

How the Brain Produces Language --and What Can Go Wrong

The science of neural networks reveals the awesome complexity of normal speech production and also brings help for language disorders. Frank Guenther

What Marine Sediments Reveal about Climate Change

A major authority on ocean sediments discusses what these deposits tell us about past and present climate. Richard Murray

They Didn't Believe It! Plate Tectonics, Foundation of Earth Systems

It took almost a century to determine if and how continents moved (continental drift). In the 1960s irrefutable evidence showed that tectonic plates caused regular shifts of the planet’s magnetic polarity, volcanoes and earthquakes -and the drift of continents.

New Ways of Imaging the Brain

A visit to the Alan Jasanoff Lab at MIT to learn how brain scientists are developing new techniques and devices to improve brain imaging.

Environmental Contaminants and Autism

Determining the relationship between environmental contaminants and the global increase in autism. Marc Weisskopf

Solar Energy the Third Way

Efficient production of solar energy with solar thermo-electric generators (STEGs)... Gang Chen

The Push for Renewable Energy

An author-activist urges public engagement to ensure the transition to renewable energy. Philip Warburg

Today's Featured Contributors

Featured Author

Lee McIntyre, Ph.D.

A philosopher and author who investigates the tension between scientific reasoning and anti-reason

Featured Guest

Meet Lynn Adler, Ph.D

A biologist who investigates the relationship between bumblebees, their preferred food-flowers, and the transmission of bee diseases.