In Two Years, 5 Unmanned Starships will be Sent to Mars
Elon announced on social media that SpaceX plans to send around 5 unmanned Starships to Mars in two years.
Sending Humans to Mars Depends on the Success of Unmanned Missions
Elon also said that the first crew mission will depend on the success of the unmanned mission. If the unmanned mission lands safely, then the crew mission will be launched in four years. If they face challenges, the crew mission will be postponed for another two years.