Nidavellir

Nidavellir is a neutron star and the home of the dwarf race. While once a prosperous realm of blacksmiths, the realm was decimated as part of Thanos's quest for the Infinity Stones.

History

Nidavellir, and the dwarves, were once well-regarded as a civilization of skilled blacksmiths, capable of crafting such weapons as Thor's Mjolnir. Their reputation earned them the respect of many, to the point of being considered a myth.

The realm was invaded by Imir, an Asgardian, who took the dwarves hostage and forced them to craft an axe capable of cutting through the fabric of reality. Imir's plans were thwarted by Thor.

Infinity War

By 2015, Thanos had arrived on Nidavellir. Taking the dwarves hostage, like Imir, Thanos demanded the dwarves create a gauntlet capable of holding all six Infinity Stones. After the gauntlet was created, Thanos proceeded to decimate the dwarf population and left its sole survivor, Eitri, crippled. The neutron star powering the Alderson disk was eventually closed shut.

Three years later, in 2018, Thor, Rocket Raccoon, and Baby Groot traveled to the planet, attempting to forge a weapon capable of killing Thanos, later known as Stormbreaker. Creating the weapon also required the neutron star to be reopened.

Alternative universes

An unknown branch of the main timeline occurred on the realm, resulting in the Time Variance Authority having to prune the newly-created timeline.

The realm was also involved in an alternate universe where Tony Stark and Gamora attempted to melt the Infinity Gauntlet.