The mycelial network was a discrete subspace domain containing the mycelium, or roots, of the fungus Prototaxites stellaviatori. The network could be conceptualized as vast a microscopic web, an intergalactic ecosystem, or an infinite number of roads leading everywhere. It spanned a number of universes. It spanned not only the known universe, but underpinned all quantum realities. (DIS: "Choose Your Pain", "Despite Yourself")
The network could be accessed via the mycelium spores of P. stellaviatori. At least two technologies were based on it, the Terran Empire's super-mycelial reactor, and Starfleet's Spore drive. Additionally, lifeforms such as the "tardigrade" could travel through the network naturally. (DIS: "Choose Your Pain", "What's Past Is Prologue")
Those traveling along the network might find themselves near-instantaneously transported over long distances, or to the same coordinates in a different universe. While traveling to another universe, there was a risk of "overshooting" and arriving months later then intended. (DIS: "The Butcher's Knife Cares Not for the Lamb's Cry", "Despite Yourself", "What's Past Is Prologue")
While experimenting with spore drive, USS Discovery found pockets of negative mass within the data it accumulated. The crew theorized that these could indicate alternative parallel universes connected to the mycelial network. However, the exact coordinates of some of these more esoteric destinations eluded the ship, until Lorca managed to fill in these gaps using a highly complex jump pattern. With these coordinates, Discovery attained the ability to cross into the Mirror universe. (DIS: "Into the Forest I Go", "Despite Yourself")
2250s threatIn the Mirror universe, Paul Stamets utilized the mycelial network in order to build a super-mycelial reactor. However, the technology had a major flaw: it's orb element pulled power directly out of the network in a way that prevented it from regenerating itself, and in fact poisoning it, spreading infection back up into the mycelial system.
This caused the network to deteriorate across the entire multiverse, in a manner which might eventually have proven irreversible. Effects of the corruption included the dying of Prototaxites stellaviatori. If the damage was allowed to continue, life as we know it across all universes might cease. (DIS: "The War Without, The War Within", "What's Past Is Prologue")
The crisis was seemingly averted when the USS Discovery managed an attack on the ISS Charon, the ship on which the super-mycelial reactor was installed, and severed its orb from the network. The network began regenerating immediately. (DIS: "What's Past Is Prologue")
|basidiosac rupture • black alert • bloom failure • excess energy cavitation • Hawking radiation firewall • mycelial network • mycelial plane • mycelial barrier • mycelium spore • prototaxites stellaviatori • reaction cube • speirin • spore chamber|