Why has the American economy continued to outperform so many of its peers, despite facing the same global shocks?

Musk is now worth $1.11tn according to the Bloomberg rich list, while SpaceX listed on the Nasdaq stock exchange with a value of $2.2tn.

The ban forms part of the government's package of sanctions on Moscow due to the ongoing war with Ukraine.

The BBC's Michelle Fleury spoke to Tom Mueller, who was one of the company's founders alongside Elon Musk in 2002.

The economy shrank slightly in April as the Iran war began to have an impact on businesses, official data shows.