In the test, known as Starfish Prime, a 1.4 megaton nuclear weapon was detonated 250 miles above the Earth’s surface in the Pacific. In an instant, an electromagnetic pulse - a brief burst of ...

A Russian spacecraft launched higher than most satellites has long had the Pentagon worried — and new revelations about what ...

Recent satellite imagery shows a curious white-colored object at the end of the runway at a remote airstrip in northwestern ...

The Limited Test Ban Treaty, which prohibits nuclear tests in the atmosphere, underwater or space, was signed by the United States, Britain and the Soviet Union in 1963. The Outer Space Treaty ...

It will mean that some nation has attempted a secret bomb test in space—and has been caught in the act. The U.S. tests above the atmosphere in 1958 taught that when a nuclear bomb explodes in a ...

Project A119 was a Cold War-era response to Sputnik, with the goal of using a nuclear explosion in space to scare the Soviets ...

The partnership aims to demonstrate high-power nuclear electric propulsion technology in a flight program by the end of the ...

To combat this problem, space agencies and contractors ... the project design and reveal what technologies, testing, or other aspects of the nuclear system are missing before a larger-scale ...

Russian President Vladimir Putin has said that Moscow is "categorically against" the deployment of nuclear weapons in space. His remarks came during a televised meeting with his defence minister ...

Getty Images British nuclear testing in the Pacific in 1957 Thousands of the men have suffered cancers and other conditions that other nuclear states have recognised as probably linked to the now ...