With the Starship acing its latest test, future trips to Mars seem closer than ever. But revolutionizing space travel and building homes on Mars all come secondary to the ultimate prize of expanding humankind's footprint in the solar system. And according to Elon Musk, Mars City could be the key to our species’ survival..

Elon Musk says Starship rockets 'designed to make human life multiplanetary'.

Musk's discussion of Starship's capabilities comes after SpaceX ferried NASA astronauts to the International Space Station via its first operational SpaceX Crew Dragon launch, an important milestone for the space program.

This is not the first time Musk has talked about SpaceX, which is rapidly growing out its Starlink satellite internet system, in the context of making humanity a multi-planetary species.

After SpaceX received its official certification from NASA to carry astronauts to the ISS earlier this month, which Musk described as a "great honor," the 49-year-old Musk added the news would help inspire "confidence in our endeavor to return to the Moon, travel to Mars, and ultimately help humanity become multiplanetary.”