Iran has launched a rocket capable of reaching the edge of space but one UK missile expert, however, says the test has "very little military significance".
A computer worm that spreads via AOL instant messaging is being used to build an extensive "botnet" of remote-controlled PCs. The goal appears to be to create a huge network of remote-controlled machines, known as a "botnet." Botnets may be used to send out huge quantities of junk e-mail or attack business websites, or create click fraud on Internet ads.
Japanese scientists have come up with a method for encrypting messages using quasars, which emit radio waves and are thought to be powered by black holes.
Japanese researchers have demonstrated laser communications chips capable of transfering information through optical fibers at a record 25 gigabits per second, a development that could lead to the first petaflop-class supercomputer by 2010.
The US government has unveiled a "non-lethal" laser rifle designed to dazzle enemy personnel without causing them permanent harm. But the device will require close scrutiny to ensure compliance with a United Nations protocol on blinding laser weapons.
A man has been arrested in Japan on suspicion carrying out a virtual mugging spree by using software "bots" to beat up and rob characters in the online computer game Lineage II. The stolen virtual possessions were then exchanged for real cash.
A spat between rival computer worm writers has escalated into a destructive free-for-all, with an assortment of worms infecting thousands of computers worldwide and disrupting several high profile companies.
Researchers at the University of Toyko have developed a Robotic Catcher that can comfortably grab a ball careering through the air at 300 kilometres per hour, or 83 metres per second, its creators say. And, of course, the robot never gets tired of doing so.
Japan has revealed plans to build a supercomputer so staggeringly powerful that it will be five times swifter than the 500 fastest systems on the planet today – combined.
A society of virtual "agents" - each with a remarkably realistic personality and the ability to learn and communicate - is being crafted by scientists from five European research institutes who hope to gain insights into the way human societies evolve.