A model of the double helix structure of  DNA. (Wikimedia Commons)

The secret of life revealed: Today in science history

April 25, 2016

On April 25, 1953, the “secret of life” was revealed in a short article in Nature that began, “We wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel...



Researchers think that melting of the mantle (the red blob the right) changed the internatl structure of the moon, causing the axis to shift from the blue line to the green line. (Credit: James Keane, U of Arizona)

The moon’s wandering pole

March 28, 2016

If you’re an avid watcher of the night sky — or a Pink Floyd fan — you probably know that we Earthlings always see the same side of the moon. We always see the bright side,...


Pictogram_pi

Celebrating All Things Pi on 3/14

March 14, 2016

There’s no better time to celebrate the magic of mathematics than Pi Day, which of course is on 3/14. Called by some the geekiest day of the year, Pi Day (also Albert Einstein’s birthday) is a great...


(c) New York Times

Research in the Classroom: Taking Action

February 27, 2016

The idea of conducting research can instill fear in many who are unfamiliar with its many varieties. Particularly in science-related areas, it’s easy to conjure images of white-coated, protective-goggle-wearing individuals hunkered over Erlenmeyer flasks waiting for...




This Iowa farm uses eco-friendly no-till practices to grow corn and soybeans. (Credit: Jason Johnson, USDA NRCS Iowa)

Organic farming could help feed the planet and protect it

February 10, 2016

Every day, it seems, there’s a new food trend. Low fat, gluten free, sugar free, organic. That last one probably conjures up images of a quaint country farm, with orderly rows of leafy vegetables and free-range...


Katherine Johnson (1918-), mathematician, at her desk with a "Celestial Training Device." (Credit: NASA)

Celebrating African Americans in STEM: Katherine Johnson

February 1, 2016

To celebrate National African American History Month, we applaud Katherine G. Johnson, a living legend in the fields of math, physics, and space science. A lifelong love affair with numbers brought Johnson from a small town...


A teacher and her audience at Acadia National Park, Maine. ©NPS

A natural beauty: American geoheritage

January 25, 2016

The American Geosciences Institute (AGI) recently announced that the 2016 Earth Science Week theme is “Our Shared Geoheritage.” A somewhat new term for American ears, geoheritage is defined as … the collection of natural wonders, landforms,...