United Launch Alliance's years-long delays with its new Vulcan rocket have flipped the script for national security missions, ...

As new rockets and space companies arrive on the scene, this workhorse of a rocket, the Falcon 9, remains the most common ...

A SpaceX launch of a GPS satellite Friday marked the latest national security mission taken away from United Launch Alliance because of delays to its Vulcan rocket.

Musk probably doesn’t have much to fear. Legally, the Trump administration would likely enmire itself in lengthy legal ...

This marks the second consecutive GPS III satellite to be switched from ULA to SpaceX, following December’s launch of GPS III ...

WASHINGTON — A SpaceX Falcon 9 rocket launched the U.S. military’s latest Global Positioning System (GPS) satellite on May 30 ...

Elon Musk's SpaceX is already expected to conduct more than two dozen national security-related space launches over the next ...

President Donald Trump's threat to cancel Elon Musk's government contracts would have far-reaching implications, experts said ...

The president could tighten federal oversight of the tech titan’s businesses, even if heavy reliance by the Pentagon and NASA ...

A public spat between Elon Musk and US President Donald Trump has put over $22 billion in SpaceX government contracts at risk ...

SpaceX is set to launch an advanced GPS satellite for the U.S. Space Force today (May 30), less than three months after ...