Explaining and Measuring the Expanding Universe

The universe is expanding at an incredible rate, and dark energy is thought to be the cause. Astronomers observe and measure this mystery with very sophisticated equipment. Paul Martini

Mathematics and the Multiverse

Max Tegmark discusses the topic of his book: the multiverse and the mathematical nature of reality.

The Evolution of Photosynthesis

How photosynthesis --and life-- emerged in Earth's ancient chemical environment. Tanja Bosak and Alexander Petroff

The Potential Uses of Deep-Sea Microbes

A leader in the study of exotic microbes at hydrothermal vents explains the significance and the potential of these life forms. Peter Girguis

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

How Glaciers Affect Earth and Climate

An explanation of the relationship between glacial cycles and climate change. Jack Ridge

Viruses: Threats in a Tiny Package

Viral infections that were once obscure are potentially global threats in a highly linked world. New tools are being deployed to identify and block these diseases. John Connor

From The Cell to Cancer

What causes cancer, and how do the current different theories influence the research? A internationally prominent research team provides a unique view. Ana Soto and Carlos Sonnenschein

Solar Thermoelectric Alternative Energy

A nanotechnology innovation designed to significantly improve production of solar energy. Gang Chen

Power Plants and the Freshwater Crisis

The cooling systems of power plants use an enormous percentage of our diminishing freshwater supply. What's the solution? John Rogers

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 Sushil Alimchandani, PhD

A computational biologist's view of cellular mechanisms