Yggdrasill

Yggdrasill, the world tree, is an energy field that supports and connects the Ten Realms. It is represented as a tree; the roots and branches of the tree each connect a different realm such as Asgard, Jotunheim, Muspelheim, Alfheim, Vanaheim, Nidavellir, Svartalfheim, Niffleheim, and the earthly realm of Midgard through which all the connections pass. Initially, there were Ten Realms. The lost realm of Heven was cut from Yggdrasill by Odin after the war between Asgard and Heven seemingly cost the life of his newborn daughter Aldrif.^[10] The Anti-Tree is said to be Yggdrasill's shadow.^[11]

At its base are three wells: Urdarbrunnr (Well of Fate), from which the tree was watered by the Norns (the Fates); Hvergelmir (Roaring Kettle), in which dwelt Nidhogg, the monster that gnawed at the tree’s roots; and Mímisbrunnr (Mimir’s Well), source of wisdom, for the waters of which Odin sacrificed an eye. The Loom of the Fates was also located at the base of Yggdrasill.^[12] After Ragnarök, the world tree, though badly shaken, was to be the source of new life.^{[citation needed]}

During the final Ragnarök, Thor wanted to end the continuous Ragnarök cycles the Asgardians were subjected to, so he ripped apart the Loom of the Fates, destroying Yggdrasill and everyone within Asgard.^[12] Despite this, Yggdrasill would come back in to existence.^{[citation needed]}

After the city of Asgardia crashed into the Sun,^[13] a seed of Yggdrasill that was contained in the city withstood the Sun's intensity and took root. It rapidly grew into another Yggdrasill. During the War of the Realms, Thor pinned himself to the tree using his axe Jarnbjorn to learn how to finally defeat Malekith the Accursed.^[14] A vestige of the Yggdrasill was used to grow the Watchtower Tree in Asgard.^[15]

Alternate Reality Versions[]

Ultimate Universe (Earth-1610)[]

The "World Tree" existed on this reality in Asgard as well as the Earth, until it was destroyed by the Children of Tomorrow.^[16] In this reality, a World Tree was also located on the planet Halycon.^[8]

New Ultimate Universe (Earth-6160)[]

Yggdrasill supports the Nine Realms. After Thor and Sif left Midgard's Ultimates, they traveled to Yggdrasill with the intention of traveling throughout the realms, causing chaos, discontent and raising armies, as well as starting the Asgard Rebellion against All Father Loki.^[17]

Wolverine and the X-Men & Avengers: EMH! (Earth-8096)[]

Yggdrasill is seen when Loki used the Norn Stones to link all the Nine Realms which includes Earth. There is also a tree in Odin's throne room representing Yggdrasill, which allowed Loki access to the mystical energy of the universe.^[18]

Larval Earth (Earth-8311)[]

Larval Earth's counterpart for Yggdrasill is Hygga-Dygga. While important for the dogs of Arfgard, Hygga-Dygga has a much more mundane use.^[4]

Battlerealm (Earth-15513)[]

On Earth-15513, the reality in which God Emperor Doom fashioned Battleworld, Yggdrasill was located at Doomstadt and used as Doom's throne.^[19] During the raid against Doom, Star-Lord used Yggdrasill to bring back Groot with a splinter.^[20]

Marvel Cinematic Universe (Earth-199999)[]

In Earth-199999, Yggdrasill is as a constellation linking the Nine Realms through a cosmic channel. Thor insists that humans are unaware of the cosmos despite glimpses of the tree's branches appearing through the Hubble Space Telescope's images.^[21]

• In the Marvel Cinematic Universe, the tree form that the Multiverse takes after being shaped by Loki^[22] was inspired by Yggdrasill.^[23]