Getty Images"Humanity will reach Mars in your lifetime," wrote Musk on July 6.
The billionaire has been adamant that he wants to populate the red planet and that his rocket-building company, SpaceX, is a first step toward achieving that goal.
In 2020, Musk said he hoped to build 1,000 Starships over 10 years.
The billionaire's goal at the time was to launch an average of three Starships per day and make the trip to Mars available to anyone. "Needs to be such that anyone can go if they want, with loans available for those who don't have money," Musk wrote.