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 ...

The worried reaction within space and national security agencies highlights the risks of government’s exclusive dependence on ...

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

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

Escalating tensions between Elon Musk and Donald Trump raise concerns about the stability of SpaceX's contracts with Nasa and ...

Musk threatened to decommission the Dragon spacecraft, Nasa’s only active means of astronaut transport. Although he later ...

A SpaceX Falcon 9 rocket launched the eighth Global Positioning System III space vehicle to orbit on Friday from Cape ...

Elon Musk’s brief threat to cut off NASA’s access to SpaceX’s Dragon spacecraft exposed how heavily the US space agency and ...

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

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