Elon Musk outlined plans to build a Moon city and send humans to Mars to extend human civilization beyond Earth [1, 2].

These goals represent a strategic effort to ensure the long-term survival of the human race by establishing permanent settlements on other planetary bodies [1, 2].

Speaking at the Forbes Innovator 250 Celebration on April 28, 2026, Musk said the necessity of becoming a multiplanetary species [1]. The SpaceX founder and CEO said that the use of the Starship spacecraft is central to these ambitions [2].

Reports on the vision vary regarding the immediate priority of these efforts. One account suggests Musk may be shifting focus away from Mars to prioritize the construction of a city on the Moon [1]. However, other reports indicate that Musk continues to provide updates on Starship specifically aimed at reaching Mars in the near term [2].

Musk has also linked these aerospace ambitions to his other ventures. On April 27, 2026, he mentioned the role of artificial intelligence in these plans, saying, “Join xAI if the idea of mass drivers on the Moon appeals to you” [3].

The scale of these projects involves complex engineering and logistical hurdles. The transition from orbital flights to sustainable lunar and Martian colonies requires a level of infrastructure not yet present in current space flight capabilities [1, 2].

“Join xAI if the idea of mass drivers on the Moon appeals to you,”

The tension between prioritizing the Moon or Mars reflects the immense technical challenge of deep-space colonization. Establishing a lunar base would serve as a critical stepping stone, providing a low-gravity environment to test life-support and propulsion systems, before attempting the significantly longer and more hazardous journey to Mars.