Only the Compact Miner is fueled. Other hulls are bought with ore in the mothership hold. Lose a ship and you launch another. No hulls left, and the run ends.
W A S D highlights a hull. Space buys it at the dock, or boards one you own. Click a hull to do the same.
In flight: A D turn · W thrust · S reverse · Shift boost · Space mine or fire · E dock