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

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 ...

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

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 – ...

A top arms diplomat at the State Department recently laid out what might come next as Washington upends decades of federal policies on nuclear proliferation.

U.S. Air Force acquisition documents show that Boeing is being contracted to replenish the inventory of GBU-57's expended ...

An Al Jazeera investigation claimed Israel deployed thermobaric weapons in Gaza that could "evaporate" human bodies.

The allegations were leveled by U.S. officials late last week. Arms control experts worry that norms against nuclear testing ...

It remains to be seen whether the three big nuclear powers are headed into a new arms race, or whether President Trump is trying to spur negotiations on a new accord now that a last Cold War treaty ...