Question: Which fictional cosmic entity that consumes planets is the longtime Fantastic Four foe?

full_context: Document 1: List of cosmic entities in Marvel Comics: This is a list of prominent cosmic or mystic beings appearing in the fictional Marvel Universe, as defined by status and/or god-like power level. Licensed or creator-owned characters (G.I. Joe, Groo the Wanderer, RoboCop, Star Trek, Star Wars, etc.) should not be included. Neither do temporary power-ups through outside sources (e.g. the Red Skull possessing a cosmic cube, etc.). Marvel Universe characters who exist in other dimensions, timelines, or times (such as Dormammu, or Kang the Conqueror) "are" included. Company owned characters below are also included with reference. Marvel has periodically published guides to their characters under the title Official Handbook of the Marvel Universe, a Marvel Comics Presents series and a series of Marvel Universe Cards. "Epic Comics, Marvel UK, Marvel Knights, Marvel 2099, Razorline," and "Ultraverse" are a trademark of Marvel Publications.
Document 2: Superman (Earth-Two): Superman of Earth-Two is an alternate version of the fictional superhero Superman, who appears in American comic books published by DC Comics. The character was introduced after DC Comics created Earth-Two, a parallel world that was retroactively established as the home of characters whose adventures had been published in the Golden Age of comic books. This allowed creators to publish Superman comic books taking place in current continuity while being able to disregard Golden Age stories, solving an incongruity, as Superman had been published as a single ongoing incarnation since inception. The character first appeared in "Justice League of America" vol. 1 #73 (August 1969).
Document 3: Eternity (comics): Eternity is a fictional cosmic entity appearing in American comic books published by Marvel Comics. He is the "de facto" leader of the abstract entities collectively known as the Cosmic Powers of the Marvel Universe.
Document 4: Groot: Groot ( ) is a fictional superhero appearing in American comic books published by Marvel Comics. Created by Stan Lee, Jack Kirby, Larry Lieber, and Dick Ayers, the character first appeared in "Tales to Astonish" #13 (November 1960). An extraterrestrial, sentient tree-like creature, the original Groot first appeared as an invader that intended to capture humans for experimentation.
Document 5: Galactus: Galactus ( ) is a fictional character appearing in American comic books published by Marvel Comics. Formerly a mortal man, Galactus is a cosmic entity who originally consumed planets to sustain his life force, and serves a functional role in the upkeep of the primary Marvel continuity. Galactus was created by Stan Lee and Jack Kirby and first appeared in the comic book "Fantastic Four" #48, published in March 1966.
Document 6: Superman and Lois Lane: Superman/Clark Kent and Lois Lane are among the best known fictional couples. Created by writer Jerry Siegel and artist Joe Shuster, both characters (including Superman's alter ego, Clark Kent) first appeared in DC Comics' "Action Comics" #1 (June 1938). They have remained in a complicated relationship ever since. The couple has been portrayed in multiple Superman adaptations in different media.
Document 7: Black Bolt: Black Bolt (Blackagar Boltagon) is a fictional character appearing in American comic books published by Marvel Comics. Created by Stan Lee and Jack Kirby, the character first appears in "Fantastic Four" #45 (December 1965). Black Bolt is the ruler of the Inhumans, a reclusive race of genetically altered superhumans. Black Bolt's signature power is his voice, as his electron-harnessing ability is linked to the speech center of his brain. Speaking triggers a massive disturbance in the form of a highly destructive shockwave capable of leveling a city. Due to the extreme danger posed by this power, the character has undergone rigorous mental training to prevent himself from uttering a sound, even in his sleep, and he usually remains completely silent and speaks through sign language or via spokesperson.
Document 8: Cyborg (comics): Cyborg (Victor "Vic" Stone) is a fictional superhero appearing in American comic books published by DC Comics. The character was created by writer Marv Wolfman and artist George Pérez and first appears in a special insert in "DC Comics Presents" #26 (October 1980). Originally known as a member of the Teen Titans, Cyborg was established as a founding member of the Justice League in DC's 2011 reboot of its comic book titles and subsequently in the 2016 relaunch of its continuity.
Document 9: Superman in film: The fictional character Superman, an American comic book superhero in DC Comics publications, has appeared in movies almost since his inception. He debuted in cinemas in a series of animated shorts beginning in 1941, and then starred in two movie serials in 1948 and 1950. An independent studio, Lippert Pictures, released the first Superman feature film, "Superman and the Mole Men", starring George Reeves, in 1951.
Document 10: Superman/Fantastic Four: Superman/Fantastic Four, subtitled "The Infinite Destruction," is an intercompany comic book jointly published by DC Comics and Marvel Comics in July 1999. The tale unites DC's first superhero Superman and Marvel's first superhero team, the Fantastic Four—pitting them against the Cyborg Superman (who gained notoriety in 1993 during DC's "Reign of the Supermen" story arc) and the longtime FF foe Galactus.
Document 11: Absorbing Man: The Absorbing Man (Carl "Crusher" Creel) is a fictional supervillain appearing in American comic books published by Marvel Comics. He first appeared in "Journey into Mystery" #114, cover dated March 1965, created by writer Stan Lee and writer/artist Jack Kirby. Over the years he has played a part on several Marvel Comics crossovers such as the original "Secret Wars" and "Fear Itself".
Document 12: The Fantastic Four (unreleased film): The Fantastic Four is an independent superhero film completed in 1994. Executive produced by low-budget specialist Roger Corman and Bernd Eichinger (who went on to produce a big-budget "Fantastic Four" film in 2005), the film was based on Marvel Comics' long-running comic book and featured the origin of the Fantastic Four and that superhero team's first battle with the evil Doctor Doom, combining the superteam's origin from "The Fantastic Four" #1 and Doom's origin from "Fantastic Four Annual" #2 with original elements. Despite a tentative scheduled 1994 release date, the film was ultimately never released officially, but illegal copies began circulating after a few years.
Document 13: Beyonder: The Beyonder is a fictional cosmic entity appearing in American comic books published by Marvel Comics. Created by writer Jim Shooter and artist Mike Zeck, the Beyonder first appeared in "Secret Wars" #1 (May 1984) as an unseen, nearly omnipotent being who kidnapped the heroes and villains of the Marvel Universe and had them do battle on another planet called Battleworld. He later appeared in a more antagonistic role in the 1985 sequel "Secret Wars II", in which he took human form, and threatened to destroy the Marvel multiverse. Although he first took on a physical, humanoid form in "Secret Wars II" #2, it was in "Secret Wars II" #3 that he took on the permanent form in which he remained for the rest of his existence, that of a Caucasian human male with curly black hair. Although the character met his demise at the end of "Secret Wars II", he has subsequently appeared in stories well into the 2000s, although in greatly diminished form.
Document 14: Eternals (comics): The Eternals are a fictional race of superhumans appearing in American comic books published by Marvel Comics. They are described as an offshoot of the evolutionary process that created sentient life on Earth. The original instigators of this process, the alien Celestials, intended the Eternals to be the defenders of Earth, which leads to the inevitability of war against their destructive counterparts, the Deviants. The Eternals were created by Jack Kirby and made their first appearance in "The Eternals" #1 (July 1976).
Document 15: Superman: Superman is a fictional superhero appearing in American comic books published by DC Comics. The character was created by writer Jerry Siegel and artist Joe Shuster, high school students living in Cleveland, Ohio, in 1933. They sold Superman to Detective Comics, the future DC Comics, in 1938. Superman debuted in "Action Comics" #1 (cover-dated June 1938) and subsequently appeared in various radio serials, newspaper strips, television programs, films, and video games. With this success, Superman helped to create the superhero archetype and establish its primacy within the American comic book. The character is also referred to by such epithets as the Big Blue Boy Scout, the Man of Steel, the Man of Tomorrow, and the Last Son of Krypton.
ground_truth: Galactus