The United States and Iran will begin indirect talks in Geneva as tensions rise between the countries over nuclear weapons.

The second round of talks in Geneva about Iran's nuclear program takes place as the United States ramps up its military ...

GENEVA — The U.S. and Iran are holding their second round of talks about Iran’s nuclear program Tuesday in Geneva as Iran said it will close the Strait of Hormuz for several hours as it holds live ...

In space no one can hear you scream, warns the memorable tagline of the sci-fi chiller Alien.

Satellite images show major construction at secret nuclear weapons facilities in southwest China. The images reveal new buildings, underground bunkers, and industrial infrastructure linked to ...

The U.S. Department of War airlifted a five-megawatt nuclear reactor built by Valar Atomics from California to Hill Air Force ...

On February 15, 2013, a small asteroid exploded over the city of Chelyabinsk, Russia. [‘On This Day in Space’ Video Series on Space.com] The shock wave from this explosion damaged thousands of ...

Satellite imagery of secretive nuclear facilities reveals Beijing’s efforts to expand its arsenal, just as the last global ...

The Rulison test — conducted at a depth of 8,425 feet — was the deepest subterranean nuclear-bomb detonation conducted in U.S. history.

The New START agreement between the USA and Russia is dead, and there are concerns this will lead to a nuclear-testing ...

To protect Allied astronauts and spacecraft, U.S. commanders need to stage a preemptive strike on Russia’s atomic-armed ASAT missile before it can be launched into orbit.

February 5 might have seemed like any other day, but it will certainly go down in history as the definite end of an era – ...