The Outer Space Treaty bans nuclear weapons in orbit—but we currently have no way to verify that satellites aren't carrying ...

A constellation of cubesats fitted with special detectors could sniff out nuclear weapons hidden on satellites launched by ...

Normally, the high-speed particles are considered a space hazard that satellite engineers and human exploration missions need ...

The US carried out the Starfish Prime test by detonating a 1.4-megaton thermonuclear bomb about 400 kilometres above Earth.

There is a long-standing international treaty in place but we can't be the only ones side-eyeing world's current crop of ...

Analysis: China has read the black-and-white letters of the Treaty of Rarotonga carefully, before firing a ballistic missile ...

What should have been the most important war the United States has fought since World War II has descended into chaos.

Scientists have proposed a satellite that could detect hidden nuclear weapons in space by sensing neutrons naturally emitted from uranium. Here's how it could help enforce an important space treaty.

Although the 1967 Outer Space Treaty bans nuclear weapons in space, there’s currently no way to verify that satellites aren’t ...

Russia’s use of the Oreshnik nuclear missile extends beyond a single weapons system — its underlying logic is to terrorize ...

The USS Scorpion vanished in 1968 with 99 men, a nuclear reactor, and two nuclear weapons. The Navy still has no definitive answer why.

Twin earthquakes struck northern Venezuela within 39 seconds, prompting claims about their explosive force. Scientists say ...