When Ego was killed,
Does Peter Quill Still Have Powers? Technically, Peter Quill no longer has the traditional powers of a Celestial that Ego had. However, even when he wasn't on Ego's planet, he was still unable to access the light.
Peter Quill is semi-immortal in the comics thanks to his hybrid Human/Spartax physiology and the fact that he stole the source of power from the gods. This means that he ages much more slowly than a regular human being. In the MCU, however, Star-Lord is not immortal.
On a genetic level, Peter Quill is still partially a Celestial. It is because of this that he has the strength, endurance and will power to co-exist in a setting (space) with beings that are far better adapted for that environment then he is.
As a consequence of Ego's destruction, Peter Quill lost the source of his powers and reverted back to his human self.
Peter Jason Quill was born in 1980 to Meredith Quill and Ego, making him a hybrid of human and Celestial. His conception was all part of a plot set up by his father to produce a second Celestial, whose power he could use to complete the Expansion, which involved assimilating millions of worlds into Ego's very being.
Having a celestial parent doesn't make you a eternal. Peter's dad is a celestial, so Peter is technically a half celestial. Eternals are basically enhanced humans with superpowers. They are the product of the celestials' genetic experiments, not their children.
While most Celestials possess extraordinary power, Gamiel is the weakest of all of them. He is the same size as that of the Hulk and is the youngest of all Celestials. Gamiel got the moniker “Manipulator” because he caused the events that led to the 4 million year Kree-Skrull war.
Logos considered the Celestials to be unwanted competition as judges of worlds and thus destroyed the surviving Celestials, though he was told that nothing truly died by the Queen of Nevers, who secretly saved the One Above All while Logos killed the other Celestials, making him the last Celestial.
In fact, Thor is only half Asgardian. This will especially be news for fans who believe Thor's adopted brother Loki (a pint-sized Frost Giant) is the only non-Asgardian member of Odin's family (in the movies, that's a pivotal distinction).
We know from Guardians of the Galaxy 2 that Celestials are god like beings. Odin seems to possess a power far beyond any other Asgardian. He was a celestial that, unlike Peter's dad, used his power to birth a race of people who each carried a bit of his power within them.
Personally, Thanos is physically and mentally superhuman, capable of overpowering the Hulk and the Asgardians that he casually wipes out. Taken as individuals, Thanos is easily overpowered, but with all massed resources on both sides, he is marginally capable of overcoming Ego.
Ego was a Celestial, a primordial and powerful being, and the biological father of Peter Quill and Mantis.
So, will Peter Quill get his Celestial powers back? When Ego was killed, Peter Quill lost his connection to the light that gave him powers presented in Guardians of the Galaxy Vol. 2. Even the director, James Gunn, revealed in a now-deleted Tweet that Peter isn't getting those powers back.
Thanos disrupted a cycle of death and Celestial birth that Arishem oversaw for billions of years yet he had his reasons to allow the Titan's success.
The Celestials are some of the oldest and most powerful entities in the Marvel universe. They are often treated as literally godlike, with all the strength that comes with the title. The Celestials have incredible cosmic powers that allow them to shape and destroy universes, making their abilities almost limitless.
Galactus Is More Powerful Than The Celestials.
While recounting his origin to Eddie Brock, the Symbiote God Knull revealed that he was the one who killed the Celestial whose head became Knowhere with the use of All-Black the Necrosword and used his head to create more symbiotes.
The Celestials of Earth-4280 were convinced they were gods and attempted to conquer the Multiverse by use of the Bridge, a device created by Reed Richards that allows its users to observe and enter alternate worlds. They were defeated by the combined forces of Galactus and a Franklin Richards from an alternate future.
Astronomers began observing Methuselah — named in reference to a biblical patriarch who is said to have died aged 969, making him the longest-lived of all the figures in the Bible — more than 100 years ago.
He was obliterated along his fellow Celestials by Thanos when he stabbed Black Bolt to death in order to use his destructive voice as weapon. The bones of The One Above All and the other Celestials were later used by Thanos to build a temple to live the rest of his infinite life.
The Celestials, along with many of the Marvel Universe's abstracts, are killed by the Beyonders when these beings mount their attack on the entire multiverse. They fight the enigmatic aliens with all their power, but are almost all destroyed.
Ego was a celestial born outside of the influence of another celestial (i.e. he wasn't born of a celestial seed like the ones we now know are) and thus, lacked the typical physical form of one.
In 2013, King J'son of Spartax was introduced in Guardians of the Galaxy vol. 3 #0.1. As reimagined by writer Brian Michael Bendis and artist Steve McNiven, this character is definitively identified as being the father of the Star-Lord who existed in the present-day Marvel Universe of Earth-616.
Peter Quill is a half-god but has seemingly lost his celestial status. Peter Quill (Chris Pratt) is the son of Meredith Quill (Laura Haddock), a human, and Ego (Kurt Russell), an all-powerful celestial. Born on Earth, Quill later took on the superhero moniker Star-Lord, a nickname from his mother.