A secret Russian satellite that US officials believe is linked to Russia’s nuclear weapons program appears to be spinning uncontrollably in space, in a major blow for Moscow, according to American ...

China has quietly been developing a classified space plane program, and new intel suggests it’s far more advanced than anyone expected. Designed for reusable launches, satellite deployment, and ...

Far beyond the clouds and the blue sky, a quiet but tense battle between space strike forces is playing out. Not with bullets or missiles—but with satellites. Over the last several years, Russia has ...

A U.S. spaceplane will head to the heavens next month to test a quantum sensor that could help navigation in orbit without GPS, and to demonstrate new methods of space-based communications, the Space ...