Immortality is the ability to live forever. This may be complete immortality, in which the character cannot be killed in any way, appears to die, but is resurrected somehow later, and they are forever young, or can even only be killed in specific ways (i.e. decapitation).
Some may only possess the power of:
- True Immortals: Characters who are true immortals, they will live forever unless killed.
- Virtual Immortals: Includes characters who are virtually immortal, they live for millennia but will eventually die.
- Advanced Longevity: Includes characters who are not true immortals, but do in fact have unnaturally long lifespans. This includes beings that live longer the humans.
- Regeneration: This includes beings with high-level regeneration of the body that heals any injuries, even fatal ones, preventing one from dying.
- Undead: Beings who are medically deceased but behave as if they were alive. A common example of an undead being is a corpse reanimated by supernatural forces, by the application of either the deceased's own life force or that of another being.
- Soul: A soul does not inherit physical characteristics of a living body, such as concepts of destruction, therefore it does not decay nor can it be destroyed; in short, the user cannot die because it is already dead. Most common form of immortality.
- Resurrection: The process where death is temporary. Injuries may be inflicted, but complete annihilation is impossible.
- Invulnerability: When a individual cannot be harmed in any way or form. therefore, death by physical damage is omitted.
- Possession and Assumption: The transfer of the consciousness, either permanently or temporarily, into a new body, either cloned, robotic, or someone else's.
- Self-Sustenance: Able to survive without the need for bodily resources, such as food, water, or air.
- Spatial-Temporal Lock: Existing outside the normal space-time continuum, and thus remaining immune to what happens in it.
For a full list of immortal characters, see here
The events known as incursions are the result of a contraction in the Multiverse's timeline. They exist in a paradoxical nature, as this contraction was caused by the early death of an unknown universe approximately 25 years in the past, when its Molecule Man was killed by the Molecule Man of Earth-616. However, said Molecule Man killed his counterpart when he was investigating the incursions with Doctor Doom.
This contraction caused universes throughout the Multiverse to collide, with each universe's respective Earth as the point of impact. The incursion is the name given to the period of time in which the two Earths collide, and lasts exactly eight hours. The first incursion happened seven years after the first Molecule Man was killed. Throughout the duration of an incursion, there is a short period of harmonic alignment which allows both Earths to exist next to each other without any detrimental effects.
Once the eight hours pass and the Earths collide, both the planets and their respective universes are obliterated. According to the Black Swan, there are at least eight ways of averting an incursion. One of these involves the destruction of at least one of the Earths before they can collide. Doing so will save both universes, and one of the Earths. Each time a new incursion happens, the rate in which universes collide accelerates. With each universe that is destroyed, the Multiverse contracts and its lifespan is shortened.
For each incursion there is an "incursion point," a single area in each of the colliding Earths from which the other Earth can be seen approaching, the sky inside the incursion point can be of varying colors, while usually colored red, it can also be blue which portends the Mapmakers. Outside the incursion point, everything looks normal. An unusual phenomenon called "Simtum Tapputu" can occur, in which an Earth is in incursion with two realities at the same time.
Many multiversal groups and beings are active in what has been called the "Great Game of Worlds". While the actions of the two main factions have a similar result, the destruction of the Multiverse, their intentions are the opposite.
The objective of the Beyonders is simply the entire annihilation of the Multiverse, for which they attempted to set off a Multiversal bomb of which each fragment is presented as a Molecule Man in each reality. Rabum Alal's objective is the manhunt for different Molecule Men from different universes, in hopes the resulting blast from the Beyonder's actions would be less destructive.
Two other parties, the Black Priests, the field surgeons of the Multiverse; and the Builders, created by the Captain Universes and managers of the Superflow, are trying to stop the decay of the Multiverse. Their main mean included the destruction of planets Earth. Builders from various universes also united in the Superflow to battle the Beyonders. The Captain Britain Corps investigated the incursions without taking direct action, but once they actively began to investigate them, they were destroyed by the Mapmakers.
There are also various groups and people looking for solutions to save their own realities:
In magazine and comic publishing, an indicia refers to the piece of text that is traditionally displayed on the first recto page after the cover. It contains technical information about the published material, most notably the official name of the publication, its publication date, copyright information and any disclaimers.
With the introduction of the recap page, indicia are usually present at the bottom of these. One of the most notable difference between a comic's digital and print versions are the indicia. Since the digital version doesn't need to include the technical aspects of the issue's printing, it's limited to displaying information about copyright and disclaimers.
Of or having to do with the space between two universes, each of which exists in its own dimension.
Invisibility is the state of an object which cannot be seen. An object in this state is said to be invisible (literally, "not visible"). The term is usually used as a fantasy/science fiction term, where objects are literally made unseeable by magical or technological means. However, its effects can also be seen in the real world, particularly in physics and perceptional psychology.
Since objects can be seen by light in the visible spectrum from a source reflecting off their surfaces and hitting the viewer's eye, the most natural form of invisibility (whether real or fictional) is an object which does not reflect nor absorbs light (that is, it allows light to pass through it). In nature, this is known as transparency, and is seen in many naturally-occurring materials (although no naturally-occurring material is 100% transparent).
Visibility also depends on the eyes of the observer and/or the instruments used. Thus an object can be classified as "invisible to" a person, animal, instrument, etc. In the research of sensorial perception invisibility has been shown to happen in cycles.
For a list of characters who can turn invisible, see Category:Invisibility
"In-universe" is an adjective that refers to the perspective from which the elements of a fictional story are viewed. An in-universe perspective means that how these elements are viewed is limited to the context from within the fictional story. Compare and contrast this concept with out-of-universe.
Most information relating to in-story elements (characters, teams, items, etc.) that appear in the Marvel Database must be written using an in-universe perspective. For instance, the History section of Spider-Man's article will treat him as if he was a real vigilante living in New York City, and will not make references to the fact that he was created by Stan Lee and Steve Ditko, nor make direct references to the comics in which his adventures are published.
The Iron Fist is the greatest source of Chi energy on the planet. Shou-Lao was an immortal dragon who became the source of this power. During a performance of the dragon riders of K'un-Lun for the entertainment of its Yu-Ti, Shou-Lao went berserk and attacked the city's leader. He was slain by Quan-St'ar, who cut out the dragon's heart. Enraged at this, Yu-Ti banished Quan-St'ar from the city and revived the dragon by melting its heart and placing it in a sacred cavern. From this moment, each Iron Fist had to accomplish the final test of defeating this dragon in order to absorb part of its power. He was reborn over 66 times. Danny Rand defeated the dragon, and in the course of the battle had the dragon-shaped tattoo burned on his chest. After defeating Shou-Lao, he plunged his hands into the brazier containing the dragon's immortal heart, and it charged him with the power of the Iron Fist.
By summoning his chi and focusing it into his hand, he can draw upon the superhuman energy derived from the heart of the mystic serpent Shou-Lao and make his fist inhumanly powerful and super humanly resistant to injury and pain on a superhuman scale. This "iron fist" technique does not involve a physical transformation of any kind, simply a psychic channeling of concentrated natural energy. With his fist in this state, Rand can shatter wood and brick, rip through steel, and punch his opponents with extraordinary concussive force without sustaining injury to himself. The force of this technique has rendered incredibly durable Super humans such as the Colossus unconscious.