Answer (1 of 7): My Friend if you are asking in layman terms then celestial are something related to sky or heaven is termed as celestial. Apart from this The Celestials are a group of fictional characters appearing in American comic books published by Marvel Comics. Immensely powerful and of hug
What are the Celestials, and what is its lore in the MCU? - Quora
How powerful is a Celestial from Marvel Comics? - Quora
What is the purpose of the Celestials in the Marvel Universe? - Quora
Did the Celestials ever exile one of their own? - Quora
What is the earliest known celestial object that formed within our Galaxy? - Quora
What is a celestial? - Quora
What if all the Celestials grouped together? Would they surpass the Living Tribunal and the Beyonders? - Quora
How powerful is the one above all (Celestial)? Is he stronger than Lifebringer Galactus? Does his power exceed that of the four abstracts? - Quora
Will the Celestials ever come to the MCU? - Quora
In Marvel Comics, who are the Celestials, and how powerful are they? - Quora
Could Thanos kill a Celestial? - Quora
What is a celestial? - Quora
Do the Celestials ever come to Earth? - Quora
How powerful and durable are the Celestials? - Quora