China launched its first lunar probe Wednesday. Japan sent an orbiter up last month. India is close behind. It's an economic competition with military undertones.
New alarms are sounding over signs that China may be developing space weapons, reinforcing suspicions that the People's Liberation Army is increasingly interested in the final frontier as a theater of war.
North Korea's apparent test of a nuclear device could have a devastating effect on the world's long struggle to contain the spread of the most powerful military weapon known to man.
The Bush administration's plan to deploy a high-tech fuel to power a new generation of nuclear reactors worldwide has a potentially explosive problem: It is too easy for terrorists to grab and turn it into a nuclear bomb.
The US government is developing a massive computer system that can collect huge amounts of data and, by linking far-flung information from blogs and e-mail to government records and intelligence reports, search for patterns of terrorist activity.
Against a backdrop of global efforts to address peacefully the concerns raised by Iran's nuclear power program, the US and Russia are proposing an international "partnership" for controlling the flow of weapons-grade uranium to those who might harbor military ambitions. The plan would provide energy-starved countries with the fuel they need for generating nuclear power, while taking back the dangerous waste created in its production.
The US is set to begin deploying a new generation of radiation detectors intended to be America's "last line of defense" against weapons of mass destruction.
Thousands of shoulder-fired weapons are unaccounted for, intensifying a search for ways to reduce terror threat to jets.
NASA researchers on developing swarms of micro "nanobots" that have "abundant flexibility" to change shape into land rovers, antennas, or other devices as needed when exploring distant worlds.
A look at how military robots could change the nature of warfare. One expert argues that the introduction of fighting robots would be "on the short list" of seminal events in all of military history right alongside the development of iron weapons, gunpowder, and the atomic bomb.