Musk Announces SpaceX Will Build City on Moon First

SpaceX’s guiding mission has centered on Mars for nearly two decades. Elon Musk now says the company is shifting its near-term target.

The new priority is to build a self-growing city on the Moon. Musk describes the change as a practical response to orbital mechanics and pace of development, not a step back from the broader aim. The overarching mission remains to extend consciousness and life to the stars, and the Moon offers a key edge: iteration speed.

Ability to Iterate

Musk outlined that unyielding launch window constraints are a major factor behind the pivot.

Missions to Mars are only possible when the planets align every 26 months, with a 6-month transit time. If a launch is scrubbed or something goes wrong, the schedule slips to the next opportunity—another 26 months.

By comparison, launches to the Moon can occur roughly every 10 days, with a transit time of about 2 days. A faster cadence enables more rapid improvement and richer data collection.

Logical Next Step

This approach treats the Moon as an off-world proving ground—a minimum viable planet—where SpaceX can refine permanent habitats, life support, solar power, and dependable transportation in low gravity while contending with sharp lunar dust.

These efforts can leverage Starlink, already operating around Earth, enabling fast, data-heavy communications instead of delayed links with narrow windows.

It also aligns with recent efforts by SpaceX and Tesla to build orbital data centers, following the SpaceX acquisition of xAI. The plan includes launching massive AI compute clusters into orbit, and a lunar base could host mass drivers and communications arrays to propel deep-space exploration.

What About Mars?

Musk emphasized that the Red Planet is not being abandoned; SpaceX will continue pursuing Mars, with permanent human habitation still the goal.

In the near term, however, the priority is to take the first steps on the Moon, where testing, learning, and iteration can proceed much faster. Establishing a permanent foothold there would also help ensure humanity can continue its exploration.

For those unaware, SpaceX has already shifted focus to building a self-growing city on the Moon, as we can potentially achieve that in less than 10 years, whereas Mars would take 20+ years.

The mission of SpaceX remains the same: extend consciousness and life as we know it to…

— Elon Musk (@elonmusk) February 8, 2026