text: Maezawa, 45, who became a billionaire from the online retail sector, also plans to participate in a lunar circumnavigation on SpaceX's Starship spacecraft, rival to Roscosmos and owned by US billionaire Elon Musk, in 2023?
classes:  No, the Starship's lunar circumnavigation flight took about 3 months.  Besides, the Starship's lunar circumnavigation flight took about 3 months.  Yes, the Starship's lunar circumnavigation flight took about 3 months.  Meanwhile, the Starship's lunar circumnavigation flight took about 3 months.