Scientists have devised an inexpensive and efficient way to improve security for radio-frequency identification (RFID) tags, the wireless devices that allow consumers to pay for their gas or access buildings without pulling out their wallets.

An extraordinary advance in human origins research reveals evidence of the emergence of the upright human body plan over 15 million years earlier than most experts have believed.

The Internet offers wide appeal to people with disabilities. But many of those same people find it frustrating or impossible to use a handheld mouse. Software developed at the University of Washington provides an alternative using the oldest and most vers

More than 2000 dromedaries -- Arabian camels -- have died since August 10 in Saudi Arabia. Various theories have been put forward to explain the numerous deaths.

A single solar cell produces a relatively low output – it’s a case of strength in numbers. Tiny strips of metal are used to link cells together. If the laser soldering temperature is too high, the solder joint may fracture. A new system provides autom

The team of mathematicians that first created the mathematics behind the "invisibility cloak" announced by physicists last October has now shown that the same technology could be used to generate an "electromagnetic wormhole."

The best views of the hydrocarbon lakes and seas on Saturn's moon Titan taken by the Cassini spacecraft are now available.

In the light of growing concerns about the separation of producers and consumers in our food system and the power of big supermarkets, new research provides valuable insights into the motivations and practices of consumers and producers involved in 'alter

A Princeton-led research team has created an easy-to-produce material from the stuff of computer chips that has the rare ability to bend light in the opposite direction from all naturally occurring materials.

Echoing the re-discovery of America by the Spanish long after an earlier Viking reconnaissance, astronomers have learned that a recently observed asteroid - one that could potentially hit the Earth - was actually first observed nearly a half-century ago.