Scientists answer fears that experiments at the Relativistic Heavy Ion Collider will create an unstable universe-annhilating 'strangelet'.

Researchers are moving closer to developing an unbreakable system of quantum cryptography.

Adding a new dimension to the world of creepy-crawlies, researchers at the Sandia National Laboratories have developed mobile, electronic micro-bugs - sensor-equipped robots the size of a nickel. The lab sees the devices as potential environmental monitors or antiterrorist agents - capable of silently scampering under a door, quietly rolling into a corner and eavesdropping on whatever is going on inside.

Italian scientists have genetically engineered mice to live up to 35 percent longer than normal - an experiment that offers increased evidence that aging in
mammals is controlled by a genetic switch.