Created by Stan Lee, Larry Lieber and Jack Kirby, the realm first appeared in Journey into Mystery #85 (October 1962).

Eventually, Asgard was relocated to Earth in Norway and appeared in Avengers: Endgame and Thor: Love and Thunder (2022).

The one to the north was named Niflheim, a world of clouds and shadows in whose center surged the fountain Hvergelmir, from which flowed twelve rivers of ice.

Odin and his brothers grew to hate the giants and slew Ymir, and his blood formed a great sea.

[5] The throne of Asgard later passes to Thor after Odin is killed in battle by Surtur, when the demon invades Earth.

Thor returns to Earth and rebuilds Asgard outside of Broxton, Oklahoma, purchasing the land with gold from the treasury.

[8] Asgard's location on Earth makes the city a target during the "Secret Invasion" by the Skrulls led by a Super-Skrull named Godkiller, whose powers mimic Thundra, Titania, Volcana and Battleaxe.

following the Secret Invasion as he seeks to expel Asgard from U.S. soil in an effort to consolidate power.

Immediately following the Siege, Thor reerects Heimdall's observatory atop Stark Tower as sign of solidarity with Midgard and appreciation for the Avengers' aid.

[14] During the "Original Sin" storyline, it is revealed that there is a Tenth Realm in Asgard called Heven that is inhabited by Angels.

It was cut off from the rest of the realms following the Angels' attack on Asgard which led to the apparent death of an infant Angela.

Asgardian flesh and bone is three times denser than similar human tissue, contributing to their superhuman strength and weight.

Trolls are stocky and massive, have thick body hair (almost fur) and tend toward a ruddy orange color.

Trolls tend to be extremely strong, stronger than the average Asgardian, dwarf or elf and on par with giants.

The tree is supported by three roots that extended far into the other worlds; one to the spring of Hvergelmir in Niflheim, one to the well of Mimir in Jotunheim, and another to the well of Wyrd in Asgard.

[33] Later Amora the Enchantress attempt to destroy the tree in an effort to free the body of Skurge the Executioner from its roots, an action that nearly tore apart the fabric of reality.