The launch, using a dummy warhead, took place the same day Australia and Fiji signed a mutual defense treaty meant to counter ...

China fired a nuclear-capable ballistic missile from a doomsday submarine on Monday in a show of force just as its neighbors ...

Miami-based City Labs is launching the world's first commercial nuclear-powered spacecraft atop an upcoming SpaceX mission.

China’s firing of a submarine-launched missile came as Australia secured more defense deals with Pacific Island nations.