A secret detachment of military photographers documented America’s bomb tests.

Aiming for bipartisan support and cultivating international allies could help Trump advance the new high-tech shield.

The initial contract covers the development and production of two satellites, with options for two additional satellites in ...

From cosmic rays to CT scans, radiation surrounds us but not all exposure is dangerous. Here’s how to separate fact from fear ...

Space agencies across the globe are actively investing in the development of nuclear thermal propulsion (NTP) rockets for future space exploration missions, considering NTP’s advantages over ...

Johnston Atoll, an unincorporated US territory and Pacific island wildlife refuge with a complicated military history, is no ...

The US Department of Defense’s (DOD’s) Defense Advanced Research Projects Agency (DARPA) has cancelled the Demonstration ...

Boeing's new satellites will fly roughly 22,000 miles above the Earth's surface, providing constant coverage for warfighters.

A DARPA official said the agency canceled a space nuclear propulsion project it was jointly developing with NASA as it was overtaken by lower launch costs.

Scientists have proposed two experimental spacecraft that could reach one of the farthest known objects in the solar system in as little as seven years. The team of researchers, from Italy, ...

NPR's Ayesha Rascoe talks with Daryl Kimball, executive director of the Arms Control Association, about how U.S. strikes on Iran could impact nuclear proliferation globally.

Japan on Sunday successfully launched a climate change monitoring satellite on its mainstay H-2A rocket, which made its final flight before it is replaced by a new flagship model designed to be ...