Homeland defense has entered a new era with the proliferation of nuclear-armed intercontinental ballistic missiles and ...

The role of Elon Musk's SpaceX in an ambitious new U.S. missile defense system is in question following the dramatic feud ...

President Donald Trump announced a plan to build a missile defense system, called the Golden Dome. How exactly does it work?

Five years after its formation during President Donald Trump’s first administration prompted jokes about the Star Trek-style ...

The fallout between the president and the world’s richest man revolves around a missile system that experts say is a total ...

SpaceX's role in the US Golden Dome missile defence system is in doubt after a feud between Elon Musk and Trump.

A reduced role for SpaceX would represent the first known setback to Musk's huge volume of business with the U.S. government since his break with Trump last week.