The capacity of the soil to capture massive amounts of CO2 has been undermined by chemical fertilizers and pesticides. Here's how to bring back that capacity.
Advances in nanotechnology are revolutionizing medicine. And a leader in the field describes recent developments.
There is an urgent effort to locate microbe candidates for new antibiotics. Here's why the search and cultivation are so difficult.
An explanation of how modern genetics analysis confirms ancient human migrations, such as the Indo-Europeans
A look at how major ideas in science are often initially resisted, and a view of the invisible cosmos
Deep cosmic surveys hope to explain the mysterious accelerating expansion of the universe. That search considers dark energy, dark matter, gravity.
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
The author of "Our Robots, Ourselves" discusses the limits of robot autonomy
Ancient infant teeth reveal the importance of weaning patterns in human evolution
A major ethicist and author talks about the geoengineering issue and his new book on that topic, Earthmasters
A leading expert and author on the issue of genetically modified foods explains the corporate resistance to labeling GM foods.
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.
The effects of vehicle pollutants on the developing brain
An astrophysicist who is especially gifted at making science and mathematics accessible to the general public