Nuclear, Nuclear Weapon | featured news

Ahmadinejad says first batch of higher enriched uranium produced: Iran now "a nuclear state."

Iran is experiencing surprising setbacks in its efforts to enrich uranium, according to new assessments that suggest equipment failures could undermine its nuclear ambitions.

Iran said it has begun enriching some of its low-grade uranium for use in a medical-research reactor, brushing off fresh international threats of economic sanctions.

Mahmoud Ahmadinejad tells his atomic energy chief to boost uranium enrichment from 3.5% to 20% as talks over a nuclear-fuel exchange sputter.

Iran announced the test-firing of a powerful rocket loaded with several live animals into space and unveiled a handful of other space technologies Wednesday, ahead of a nationalist holiday and amid heightened international concerns about Tehran's nuclear research and missile programs.

South Korea's defense chief called Wednesday for a pre-emptive strike on North Korea if there is a clear indication the country is preparing a nuclear attack....

South Korea and the U.S. rejected North Korea's proposal to start peace talks to formally end the Korean War, with Seoul saying Tuesday that can happen only after the North rejoins disarmament talks and reports progress in denuclearization.

The missile could easily reach Israel. Coupled with suspicions about Tehran's nuclear program, it stokes international concerns.

Iran risks increased international sanctions for failing to engage in talks on its nuclear ambitions.

President Obama's envoy on North Korea said Thursday that officials in Pyongyang agreed on the need to resume nuclear disarmament ...