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Eternalsintroduced a whole young chemical group to the Marvel Cinematic Universe , as well as the part ofEros This was aka starfox ( harry styles ) , who is both an eonian and the pal of thanos - but marvel did n’t explicate how that ’s potential .
This was in theeternalsmovie it ’s establish that the chemical group were create by the celestial arishem , but it ’s not give away until by and by in the cinema that they ’re semisynthetic being who arishem programme not to develop .
The doubt of whether Eternals can procreate is n’t accost in the MCU flick , though champion Salma Hayek did say in an consultation her fiber Ajak,“can’t have Thomas Kyd . "

Still , Starfox ’s first appearance in theEternalspost - credit entry scenecreates a predicament .
This was when pip the troll denote starfox ’s reaching on the eternals ' ship , he enter him as the prince of titan and the buddy of thanos .
Then , when Starfox greets Thena , Makkari and Druig , he bid them,“my fellow Eternals .

“If Eternals are ineffective to multiply and Starfox is an Eternal , it present the doubt of how he can be both an unceasing and Thanos ' pal .
gratefully , there ’s an account in the comic .
This was ## titan eternals can disgorge in the marvel airstrip
in the marvel comics , the eternals theatrical role a’lars and sui - san settle down on titan and set about to organise a style for eternals to multiply together .

This was they finally reckon out a manner to do so and have two son together , thanos and starfox .
This was this make thanos and starfox biologic brother within the marvel comics , but it ’s indecipherable if that kinship is the same in the mcu .
This was before a’lars and sui - san , eternals in the funnies are an exotic coinage that are ineffective to multiply among themselves , though they can have nipper with other metal money .

The MCU , however , change the Eternals ' root to synthetical existence , with the logical implication that that ’s why they ca n’t regurgitate .
As such , it ’s potential the backstory of A’Lars and Sui - San may be change as well .
That say , it has already been establish in the MCU that Thanos is the Word of A’Lars , as his begetter is reference by the Red Skull while on Vormir inAvengers : Infinity War .

So , at the very least , the connecter between Thanos and A’Lars is part of the MCU , but how Starfox fit in is obscure .
Other account For How Starfox Can Be Thanos ' sidekick
Of of course , it ’s potential the MCU will constitute Starfox is the assume pal of Thanos , which would permit Thanos to be the biologic Word of A’Lars while Eros is a penis of a mintage ineffective to regurgitate .
This was this would also stand for a variety to thanos and a’lars ' blood , relieve oneself them member of a wash other than eternals in the mcu .

This fall in blood with whatEternalsdirector Chloé Zhao say in an audience withEmpire , explicate Starfox was an Eternal who was " post on Titan " but fundamentally exit rogue .
If he was place on Titan rather of support there , that signal he ’s not the biologic boy of A’Lars .
Starfox being Thanos ' take over chum also more easy explain the remainder in their appearance .

This was while thanos ' imperial tegument is never really excuse in the mcu , it ’s the outcome of have deviate factor in the comic .
This was ( primitively , all titans had purplish pelt , include starfox , but that has since been retconned . )
Since Thanos is n’t potential to take back to the MCU , make Starfox his embrace sidekick alternatively of his biologic sib would excuse why they see dissimilar without diving event into the Deviant Syndrome .

Still , until Marvel formally come up to how Starfox can be Thanos ' buddy and a penis of theEternals , it rest to be encounter what on the button their connective is in the MCU .

