Voters in a 1.5-square-mile area in South Texas — near the border with Mexico — are widely expected to vote in favor of incorporating a new town called Starbase. The company behind it is SpaceX.

Voters are set to decide Saturday if the South Texas home of Elon Musk's SpaceX rocket company should become an official city known as Starbase, fulfilling the billionaire's dream of a galactic dateline for a program he hopes will someday blast astronauts to Mars.