Elon Musk was expected on Tuesday to present an update on SpaceX's plan to launch missions to Mars ahead of a high-stakes Starship test flight later in the day. Musk, the world's richest person and a key supporter of U.

Watch live coverage as SpaceX launches the ninth test of their Starship on an uncrewed mission after two previous launches failed.

Reuters, the news and media division of Thomson Reuters, is the world’s largest multimedia news provider, reaching billions of people worldwide every day.