Space grazers were legendary massive space-dwelling lifeforms that were said to prey upon spaceships. They were believed to have gone extinct thousands of years prior to 4000 BBY.
During the Battle of Koros Major, Aleema Keto created a magical illusion of space grazers in order to demoralize the Galactic Republic fleet over Koros Major.
- "Straight from the Horse's Mouth: A Guide to the Star Wars: Tales of the Jedi Universe, Part 3" — Star Wars Insider 28
- The New Essential Chronology
- The Complete Star Wars Encyclopedia