Exoplanet Atomospheres

12/02/14 How do scientists investigate exoplanet atmospheres --and what are they discovering? Mercedes Lopez-Morales

Living in Space: Artificial Gravity and Bioastronautics

01/04/21 The human body requires a gravity environment. So how do aerospace engineers plan for the colonization of space? Developing artificial gravity is a major objective. Ana Diaz Artiles

Our Robots, Ourselves

02/10/16 The author of "Our Robots, Ourselves" discusses the limits of robot autonomy. David Mindell

Biodiversity in the Sixth Mass Extinction

03/19/24 A prominent biologist explains the crucial importance of biodiversity for life on Earth, and how the sixth mass extinction fractures that stability. Michael Reed.

They Didn't Believe It! Plate Tectonics, Foundation of Earth Systems

02/29/20 It took almost a century to determine if and how continents moved (continental drift). In the 1960s irrefutable evidence showed that tectonic plates caused regular shifts of the planet’s magnetic polarity, volcanoes and earthquakes -and the drift of continents.

Reading the Clouds to Understand Climate Change

10/22/13 Clouds and the particles they contain are essential information for climate science. Here's how scientists gather and decipher that information............... Daniel Cziczo

What Ails American Healthcare?

08/30/22 The U.S. healthcare system ranks last among 11 high-income countries. We spend more than other nations on medical care, but the service is seriously inadequate. What can be done? Melissa Gariddo

The Electric Eye: A Visual Prosthesis

10/26/10 A major breakthrough in the restoration of vision. Shawn Kelly

The War on Science: What We Need to Do

11/27/18 The anti-science mentality and policies threaten public health, environment, and safety --and also our progress in many scientific fields. What we need to do. Andrew Rosenberg

Hard Facts about Carbon Capture and Storage

05/18/22 Just how effective is Carbon Capture and Storage (CCS), the much-promoted solution to the excess atmospheric CO2 from fossil fuels? June Sekera and Neva Goodwin

Today's Featured Contributors

Featured Author

Walter Willett, M.D.,

First-rate advice from the most cited nutritionist internationally: a guide to improving health through a good diet

Featured Guest

Sukrit Ranjan, Ph.D.

An astrobiologist investigates the possible role of ultra-violet radiation in the emergence of life on exoplanets around M dwarf stars