Working Science

Using Genetics to Trace Human History

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

Recent Events

Mapping the Heavens

A look at how major ideas in science are often initially resisted, and a view of the invisible cosmos

Resistance to New Ideas

Many of the most important advances in scientific understanding were initially rejected or ignored.

The Need for Science Funding

In an era of global science, other nations are increasing their science budgets. Why aren't we?

Cosmos: Solar Systems

Stellar death explosions produce massive gas and dust clouds, and some of that detritus becomes solar systems ...

Life: Life beyond Earth

The basic chemical elements of life on Earth are the most abundant elements in the universe...Are the conditions right elsewhere?

Elements

The origin of the heavy elements was not understood until the 1950s

Probing the Large-Scale Universe

Deep cosmic surveys hope to explain the mysterious accelerating expansion of the universe. That search considers dark energy, dark matter, gravity.

The Formation of Stars and Planets

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

Our Robots, Ourselves

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

Infant Fossil Teeth: Clues to Ancient Human Development

Ancient infant teeth reveal the importance of weaning patterns in human evolution

Clive Hamilton Talks about the Geoengineering Issue

A major ethicist and author talks about the geoengineering issue and his new book on that topic, Earthmasters

Corporate Science and Genetically Modified Foods

A leading expert and author on the issue of genetically modified foods explains the corporate resistance to labeling GM foods.

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.

Traffic Pollution and Child Cognition

The effects of vehicle pollutants on the developing brain

Energy Revolution!

Conversion to wind and solar power is possible now in the U.S.

Innovations in Clean Water Technology

Desalination offers a solution to the water shortage problem...

Today's Featured Contributors

Featured Author

Mario Livio, Ph.D.

An astrophysicist who is especially gifted at making science and mathematics accessible to the general public

Featured Guest

Meet Ana Soto, M.D.

One of the first researchers to reveal the effects of endocrine disruptors on human health