When your ship takes a hit, whether from ship-to-ship weapons or some obstacle in space, roll + Hull.

On a 10+, it holds strong.

On a 7-9, choose one:

• Everyone onboard marks two stress
• Mark damage on one of your ship systems.

When you have to mark damage to a ship system, but there are none left to mark, your ship is in serious trouble - life support is failing, sensors are haywire, hyperspace jumps are blind, etc.