History of the Universe in One Hour

11/13/11 From the Big Bang to parallel universes... Max Tegmark

The Tumultuous Milky Way and Its Satellite Galaxies

08/23/11 How do spiral galaxies like our Milky Way form? Elena D'Onghia

Using Genetics to Trace Human History

07/08/16 An explanation of how modern genetics analysis confirms ancient human migrations, such as the Indo-Europeans. Nick Patterson

Cell Architecture: Self-Organization and Scaling

10/08/19 A cell's size and the proportions of its components are strictly determined, but where do the rules come from? Scientists are still trying to figure that out. Jané Kondev

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

Soil: The Skin of the Earth

10/06/15 Soil is essential for life on Earth, and life greatly enriches soil. How did the pedosphere evolve, what makes it dynamic, and how can we save it?,,,,,,,,,,... Andrew Kurtz

Environmental Contaminants and Autism

07/23/13 Determining the relationship between environmental contaminants and the global increase in autism. Marc Weisskopf

Stem Cell Research and Communicating Science

10/03/23 A distinguished pioneer in stem cell research for oral conditions, wound healing and diabetes explains the issues and the advances in this field, and the importance of science communication for the public. Jonathan Garlick

Energy Revolution!

05/21/15 Conversion to wind and solar power is entirely possible now in the U.S. Mara Prentiss

Distinguishing Scientific Facts from Disinformation and Distortion

04/05/22 How can we distinguish scientific facts from disinformation? This Union of Concerned Scientists writer battles distortion on a regular basis. Elliott Negin

Today's Featured Contributors

Featured Author

John Quackenbush, Ph.D.

A very engaging discussion of the human genome project by one of the researchers involved

Featured Guest

Beth Orcutt

A specialist in the important role of deep-sea microbial ecosystems that are the foundation for marine life. These ecosystems may be disrupted by deep-sea mining and sub-seafloor carbon sequestration.