03/07/2015

Encryption made easier: Just talk like a parent

Encrypting emails can be tedious, difficult and very confusing. And even for those who have mastered the process, it's useless unless the intended recipient has the correct software to decode the message. A Georgia Institute ...

NASA image: Curiosity's stars and stripes

This view of the American flag medallion on NASA's Mars rover Curiosity was taken by the rover's Mars Hand Lens Imager (MAHLI) during the 44th Martian day, or sol, of Curiosity's work on Mars (Sept. 19, 2012). The flag is ...

Lady, you're on the money

So far, women whose portraits appear on U.S. money have been a party of three. Excluding commemorative currency, only Sacagawea, Susan B. Anthony and Helen Keller appear on coins in general circulation, according to the U.S. ...

Polymer mold makes perfect silicon nanostructures

Using molds to shape things is as old as humanity. In the Bronze Age, the copper-tin alloy was melted and cast into weapons in ceramic molds. Today, injection and extrusion molding shape hot liquids into everything from car ...

NASA image: Stellar sparklers that last

While fireworks only last a short time here on Earth, a bundle of cosmic sparklers in a nearby cluster of stars will be going off for a very long time. NGC 1333 is a star cluster populated with many young stars that are less ...

The math of shark skin

"Sharks are almost perfectly evolved animals. We can learn a lot from studying them," says Emory mathematician Alessandro Veneziani.

New Horizons color images reveal two distinct faces of Pluto

New color images from NASA's New Horizons spacecraft show two very different faces of the mysterious dwarf planet, one with a series of intriguing spots along the equator that are evenly spaced. Each of the spots is about ...

ESA image: Northwest Sardinia

This image over part of the Italian island of Sardinia comes from the very first acquisition by the Sentinel-2A satellite.

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