A look at the debate over building a city on the Moon or Mars, covering scientific findings, mission timelines and challenges discussed on the Fiction Science podcast.

Elon Musk has switched up his out-of-this-world focus, putting aside his Mars project to set up shop on the Moon. Musk’s SpaceX has long claimed that it will ‘colonise Mars’, though critics have often ...

SpaceX is prioritizing the moon over Mars, Elon Musk said, citing faster timelines and strategic urgency while maintaining ...

Musk has missed several of his own predictions for when his company would take humans to Mars.