Musk and Barron got down over outer space, said Musk’s mom, Maye Musk, who was also at the holiday dinner. “Barron and Elon were talking planets,“ she told Fox Buisiness host Neil Cavuto Thursday.

“Barron and Elon were talking planets,“ she told Fox Buisiness host Neil Cavuto Thursday. ”They were discussing all the different planets and why Mars is the best place to start a new ...