A Handful of Stars — Dana Stabenow

Star and the rest of the Ellfive crew are commissioned by the new government of Terranova to mount an expedition to the Asteroid Belt, there to mine for those precious ores in rapid decline on Terra and Luna. They've got two ships, solid financial backing from the First National Bank of Terranova and the blessing of the Terran Alliance. Even Star's mother is along for the ride. What could go wrong?