Elon Musk's net worth has risen $16 billion this year, making him the richest man in the world. Most of this is due to Tesla.

The Amazon founder’s space company marked a major milestone Thursday with the first test flight of its New Glenn rocket.

Elon Musk’s brood just keeps growing. The Tesla mogul has at least 12 children with three women. Musk welcomed six kids with his first wife, Justine Wilson, three with his ex-girlfriend Grimes ...