August 26, 2014

6:27 PM | A Supersonic, Stealth Sub Could Sneak Up from China
Engineers are working on a next-generation submarine that would fly through water in an air bubble. Continue reading →

August 22, 2014

11:00 AM | Why Terrorists Behead Their Victims
Reporter James Foley's beheading in the Middle East was part of a long tradition of sending a gruesome message. Continue reading →

August 21, 2014

2:00 PM | Guns and Roses
A tree, a bird, a military base and one of largest ecological restoration efforts in the United States.
12:32 PM | Octopus-Inspired Camouflage Flashes to Life in Smart Material
Octopuses and their cephalopod cousins are the undisputed masters of disguise. An octopus can change its color, texture and luminosity faster than you can say “camouflage.” So far our... -- Read more on
11:55 AM | Explainer: What Is The National Guard?
Missouri's governor has called in the National Guard, thanks to the current unrest in the city of Ferguson. Who makes up the National Guard and what exactly is it? Tara has the answers in this explainer.

August 18, 2014

9:54 PM | Mimicking geckos
Researchers at DARPA are using geckos to create biologically inspired methods of scaling vertical walls. Check out this video demonstration of “Geckskin”:

August 08, 2014

3:47 PM | Explainer: How Many Countries Are Currently at War?
While some conflicts tend to lead the headlines on a daily basis, other countries are at also at war, in more places than might be imagined.

July 30, 2014

8:30 PM | Hummingbirds Top Tiny Drones, But Just Barely
Mother's nature's tiny fliers still tops in aerodynamic efficiency, but small man-made birds closing fast.
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