Dark Matter in the Universe

Some mysterious, invisible stuff is holding galaxies together. Peter Fisher

Big Science from Little Stars

Red dwarfs provide vital information about galaxy evolution... Andrew West

Our Robots, Ourselves

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

Using Genetics to Trace Human History

An explanation of how modern genetics analysis confirms ancient human migrations, such as the Indo-Europeans. Nick Patterson

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

Take Action! How We Can Save the Environment

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

Evolution of the Y Chromosome: Males Will Survive

The scientist who led the sequencing of the Y chromosome explains its evolution, its survival, and possible relationship to conditions and diseases that affect mostly males. David Page

From The Cell to Cancer

What causes cancer? An internationally recognized research team discuss how different cancer theories shape cancer research. Ana Soto and Carlos Sonnenschein

The War on Science: What We Need to Do

The anti-science mentality and policies threaten public health, environment, and safety --and also our progress in many scientific fields. Andrew Rosenberg

Innovations in Clean Water Technology

Desalination offers a solution to the water shortage problem... John Lienhard V

Today's Featured Contributors

Featured Author

Julie Guthman, Ph.D.

A prize-winning author's books on Big Agriculture

Featured Guest

Meet Mick Follows, PhD

An expert on the crucial role of ocean plankton in maintaining the Earth's CO2 balance