Knowhere is the severed head of a deceased Celestial avatar, home of the mining colony of Exitar.
Contents
History
Mining Operations
- "Hundreds of years ago, the Tivan Group sent workers in to mine the organic matter within the skull. Bone, brain tissue, spinal fluid. All rare resources. Highly valued in black markets across the galaxy."
- ―Gamora[src]
Hundreds of years ago, the Tivan Group set up mining operations in the decapitated head of the Celestial avatar, in order to harvest the valuable bone, brain tissue, and spinal fluid from it. The absence of rules and regulations turned Knowhere into a safe haven for outlaws.[1]
Securing the Aether

In 2013, Asgardians Sif and Volstagg arrived at the Collector's Museum inside Knowhere to deliver the Aether to the Collector. They were introduced to the infamous Taneleer Tivan by Carina, and willingly gave the Aether to him, not realizing that he was apparently seeking the other Infinity Stones.[2]
Skirmish on Knowhere
In 2014, the Guardians of the Galaxy arrived at Knowhere with the intention of selling the Orb to Tivan. After he explained that the Orb was a containment device for one of the Infinity Stones, his assistant Carina attempted to free herself from his servitude by using the Orb, but the power of the stone was to much so she and the Collector's Museum were destroyed, releasing Cosmo and Howard the Duck in the process.

Ronan the Accuser's forces arrive on Knowhere
Meanwhile, Drax the Destroyer, obsessed with avenging the deaths of his wife and daughter, alerted Ronan the Accuser to their presence. Ronan's forces attacked Knowhere while he and Drax faced each other in hand-to-hand combat. Easily overpowering Drax and leaving him to die, Ronan took possession of the Orb. Sometime following the Battle of Xandar, Taneleer Tivan sat at the remains of his museum, getting licked by Cosmo and having a drink with Howard the Duck.[1]
Ambush in Knowhere

The Guardians of the Galaxy attempt to sneak up on Thanos
Four years later, Thanos went to Knowhere and destroyed most of it in his quest to acquire the Reality Stone from Taneleer Tivan. When Gamora, Peter Quill, Drax, and Mantis arrived, it was revealed to be on fire.[3]
Trivia
- In the comics, Knull decapitated a Celestial's head and as it eroded over a millennia; it was taken placed as a city known as Knowhere.
- Knowhere orbits in a binary system, around a black hole currently absorbing its twin star.[4]
- The planet's coordinates are M3RD 17H17211+2121224.