Looking for Signatures of Life on Mars

03/17/15 Was there ever life on Mars? How do scientists search for and analyze possible clues? Roger Summons

The Formation of Stars and Planets

09/15/15 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. Scott J. Kenyon

How the Brain Produces Language --and What Can Go Wrong

11/17/15 The science of neural networks reveals the awesome complexity of normal speech production and also brings help for language disorders. Frank Guenther

Ancient Environmental Shifts and Evolution

05/03/21 A warming climate led to the emergence of grasslands, which led to major evolutionary changes. Aly Baumgartner

Living Dirt: Soil’s Microbe Ecosystems

05/10/21 Healthy soil depends on healthy microbial ecosystems. These invisible communities have a very complex relationship. Kristen DeAngelis

What to Know about Geoengineering

04/22/16 The excess CO2 in Earth's atmosphere will remain for hundreds of years. An atmospheric scientist explains the need to reduce that excess as we shift to renewable energy. Daniel Cziczo

Climate Change Brings Changes to Medical Training

11/11/20 Because of climate change, many regions are experiencing diseases introduced by unfamiliar insects, microbes, and other sources. This situation requires a new approach to training medical students. Gaurab Basu, M.D., MPH

The Issue of Psychiatric Drugs

05/04/10 Medications that are effective initially can cause very serious problems later. Robert Whitaker

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

Mara Prentiss, Ph.D.

A prominent physicist makes a compelling case for shifting to alternative energy --now!

Featured Guest

Thomas Dame, PhD

A leading astrophysicist's decades-long project: the mapping of the Milky Way and discovery of two new spiral arms