Miriam said, ‘One way to find out.’ She hefted one of those ceramic eggs in her right hand, pressed a stud that made it glow red, and hurled it towards the nearest spider. It followed a low-gravity arc, slowing quickly in the thick air, and it seemed to take an age to fall. But her aim was good, and it landed not a metre from the spider.
And exploded. Evidently it had been a grenade. The spider shattered satisfactorily, those ugly claws going wheeling through the air.
Miriam had already started to run towards the spider. ‘Come on.’ You couldn’t fault her directness.
-Xeelee: Endurance, "Return to Titan"