New computer models show that some asteroids are really loose rock piles which would thwart attempts to deflect them with nuclear weapons.

Pakistani hackers have attacked 600 Indian websites, apparently in protest of Indian policy over Kashmir.

Two Russian cosmonauts are on their way to staff the empty Mir space station, on the first-ever piloted space mission funded by private investment.

Pentagon officials have ordered a reassessment of the information that is made publicly available on the military's web sites. Defense Secretary John Hamre said military Web sites offered adversaries 'a potent instrument to obtain, correlate and evaluate an unprecedented volume of aggregated information' that could, when combined with other sources of information, 'endanger Department of Defense personnel and their families.'

Researchers at UCLA have made a major advance in molecular computing by demonstrating a simple 'logic gate' using molecules.

The directors of the CIA and the NSA deined in a congressional hearing that spy satellites were being used to spy on Americans.

Bouyed by the success of the SETI@home project, several new startups are attempting to recruit idle home computers to tackle supercomputing tasks for a profit.

The absence of a catastrophic cyberattack against the United States has created a false sense of cybersecurity and has allowed costly ColdWar-era Pentagon programs to siphon money from critically needed information technology and security programs, a panel of experts warned last week.

Scientists at the Department of Energy's Los Alamos National Laboratory and other research organizations around the world are harnessing the laws of quantum physics to develop what they hope will be impregnable data encryption systems. Quantum cryptography systems would allow users to overcome the vulnerabilities of the public-key cryptosystems now widely deployed by businesses and government organizations to secure sensitive information from eavesdroppers.

Using modern quantum physics, scientists have determined that mysterious light particles could behave in a manner that smashes conventional roadblocks in the way of creating much more powerful computer parts.