My story aired this week on NPR’s All Things Considered.

My radio story aired today on PRI’s The World.

I made a web video on the subject for PBS NOVA and I was interviewed about it on PRI’s The World (see below for both). Also, here’s an article my colleague at NOVA, Allison Eck, wrote on the subject.

My radio story aired on PRI’s The World.

My remembrance of Gordon aired today on PRI’s The World.

My story aired a couple weeks back on PRI’s The World.

Hurl your star across spacetime, hitting targets and avoiding celestial hazards in your quest to earn a star that’s big and bright enough to go supernova. As you play through the game’s 50-plus levels, you’ll meet new cosmic objects like small but dense neutron stars and massive blue supergiant stars. Get gravitational assists from these and other objects to slingshot around the galaxy and hit your targets. Detect and avoid invisible black holes that will shred your star if it gets too close. Beat all the levels and watch your star become a supernova and collapse into a black hole.

Download the free NOVA Black Holes iPad App from iTunes.

My story aired today on NPR’s All Things Considered.

My story aired yesterday on PRI’s The World.

My story aired today on PRI’s The World.

About a decade ago, several of Greenland’s biggest glaciers suddenly began melting. A decade later, two groups of scientists are trying to unlock the secrets behind a scientific mystery story with potentially big consequences for the future of the island’s rapidly-melting ice sheet.

My story aired this week on PRI’s The World.

Minorities are historically underrepresented in science, technology, engineering and math fields. John Dimandja is a Congolese chemist on the faculty of Spelman College who’s pointing the way into STEM careers for students of color.

My story aired on NPR’s Weekend Edition Sunday.

Iceland is — geologically speaking — a crazy place. The local language, for instance, includes a specific word to describe the phenomenon for a volcano detonating beneath a glacier and triggering a flash flood. And now our changing planet may be setting a new geological domino effect in motion.

My story aired yesterday on PRI’s The World.

Check out my latest video for NOVA.

Trees are nature’s tool for pulling carbon dioxide out of the air, but there aren’t enough trees in the world to suck up all the CO2 humans are putting there. That’s why researchers are pushing to create artificial leaves to help fight climate change. I visit with two teams of researchers pursuing different approaches to the formidable challenge.

My story aired earlier this week on PRI’s The World.

In due time, my radio stories will air on PRI’s The World and my web videos will be published by NOVA.  My trip is supported by the Pulitzer Center on Crisis Reporting.

You can follow my Arctic adventure on Instagram.

What could you possibly have in common with a mushroom, or a dinosaur, or even a bacterium? More than you might think. In NOVA’s Evolution Lab, you’ll puzzle out the evolutionary relationships linking together a spectacular array of species. Explore the tree of life and get a front row seat to what some have called the greatest show on Earth.

Interested in telling others about the Lab? We’ve prepared a launch toolkit with a press release, Lab overview, and social media guide. So tweet and forward to your heart’s content, but most importantly, play!

Nuclear energy is fraught. What do you do with the spent radioactive fuel rods? What happens if there’s a meltdown? These worries have led many to write the whole thing off, and some to rebel against it. But a startup in Cambridge, Mass. thinks things can be different –- like, revolutionary different.

My story aired yesterday on Here & Now.

A 2-minute video featuring Clemson University ecologist Drew Lanham. Amanda Kowalski shot the video footage and I produced the film for BirdNote. We’ve got the video on Facebook as well — please share!

We’ve have been peppering our speech with “um,” “uh” and other expressions of hesitation for a long time — maybe for as long as we’ve had language. More recently, linguists are noting a shift in usage across a number of Germanic languages from “uh” to “um.”

My story aired last week on PRI’s The World and the BBC News Magazine.

Energy-saving, environmentally friendly devices are starting to work their way into the consumer market, and many were on display at this year’s Consumer Electronics Shows. But to make sure they sell, their manufacturers are leaving the efficiency out of their sales pitches.

My story aired yesterday on PRI’s The World.