An evolving U.S. national policy aims to create a system of nuclear forensics, in which scientific analysis could quickly identify the source of a nuclear attack or attempted attack.
A new U.S. federal study concluded that continued increases in oil prices may finally make the generation of solar power in orbit economically competitive.
An independent group of nuclear weapons experts said Monday that substantial work remained to be done on a new generation of warheads in order to show, short of underground testing, that the bombs would be reliable.
China and India both are planning to launch moon shots within a year in the latest sign of the two Asian powerhouses' intensifying rivalry and growing technological prowess.
Iran's program appears to be stirring interest that some fear will lead to a scramble for atomic weapons in the volatile region.
Bush administration officials reacted cautiously Tuesday to indications that Iran has improved its ability to enrich uranium as fuel for nuclear reactors, a crucial step toward nuclear weapons.
The Air Force's top general has ordered a wide-ranging review of the vulnerabilities of U.S. military satellites — one that could lead to the lifting of restrictions on using force against another country's space capabilities — because of continuing alarm over a successful Chinese missile test.
China's anti-satellite test in January increased the country's military threat to Taiwan by demonstrating a limited ability to blind the U.S. satellites that would be deployed in defense of the island, according to a report from the Council on Foreign Relations.
The Chinese military shot down one of its own aging satellites with a ground-based ballistic missile last week, demonstrating a new technological capability at a time of growing Bush administration concern over Beijing's military modernization and its intentions in space.
Even a small nuclear conflict could have catastrophic environmental and societal consequences, extending the death toll far beyond the number of people killed directly by bombs, according to the first comprehensive climatic analysis of a regional nuclear war.