So when President Donald Trump threatened on Thursday to cancel Elon Musk's federal contracts, space watchers snapped to ...

Space science experts told ABC News SpaceX has been essential to NASA’s missions and the breakdown of a relationship would leave a hole that would be hard to fill.

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

The billionaire’s feud with the president over the nation’s debt is jeopardizing lucrative deals for SpaceX and other Musk ...

Elon Musk and Donald Trump fought online. Trump said he might cut Musk’s space deals, so Musk said he’d stop using a key ...

Elon Musk is dialing back his threat to decommission a capsule used to take astronauts and supplies to the International ...