"It is very hard to separate Elon Musk's brand from the brand of Tesla, and SpaceX," a Harvard Business fellow told Newsweek.

Elon Musk exits the White House, leaving investors hopeful that he will renew focus on his companies, Tesla and SpaceX. Mr. Musk gave nearly $300 million in contributions to the U.S. presidential election campaign.

Two days after the latest in a string of test-flight setbacks for his big new Mars spacecraft, Starship, Elon Musk said on Thursday he foresees the futuristic vehicle making its first uncrewed voyage to the red planet at the end of next year.

Starship is unlike other rockets. And SpaceX is testing it to destruction—deliberately. The biggest, heaviest, most powerful rocket humans have ever made, SpaceX’s Starship, blazed into the skies late Tuesday on its ninth test flight.

SpaceX CEO Elon Musk tells "CBS Sunday Morning" that the company has about a 50 percent chance of launching an uncrewed Starship to Mars at the end of 2026. Watch more of his interview with "CBS Sunday Morning" on Sunday,