Donny Cates set this up a few years ago in Venom #4… that the abandoned Celestial head known as Knowhere, turned into a space station for many, was from a Celestial beheaded by Knull in the earliest of times.
Venom #4
Cates confirmed this, tweeting "The severed celestial head in VENOM #4 would someday erode and decay[...]
Knowhere Archives
[rwp-review-recap id="0"]
Ant-Man, Gamora, Groot, and Drax respond to a distress call from Cosmo at Knowhere Many of Groot's kin are attacking the station, and it's up to the Guardians of the Galaxy to beat back the thought-to-be-extinct species.
Back at Nova Corps HQ, Rocket Raccoon helps 30 Rock star and current Nova Commander Scott Adsit weed[...]
Here is some more visual effects, this time we are looking at the scenes from Guardians of the Galaxy that take place in Knowhere by the effects company Framestore They set this footage to David Bowie's song Moonage Daydream.
We built Knowhere, our most complicated environment to date, for Marvel's Guardians of the Galaxy and then[...]