Asteroid
Asteroids are large, celestial rocks found in Hyperspace. In the FreeSpace universe, asteroids are generally mobile, and found in large groups termed asteroid fields.
Mobile asteroids are usually harmful to any vessel that comes near, as they could collide with the ship, and the resulting impact would deal damage to the ship's hull integrity. As such, asteroids are a secondary target of warship turrets and fighters, to protect important vessels crossing hazardous fields.
Asteroids on a collision course towards any vessel are highlighted with white brackets in a ship's HUD. These must be destroyed before they impact the victim ship. At worst, multiple collisions from several asteroids could cause even large capital ships to experience hull failure and, ultimately, destruction. A notable mission which involves defending an important ship from asteroid collisions is Rebels and Renegades, where the player's squadron must shoot down asteroids on a collision course towards the NTF ''Iceni''.