Inispersent
Inispersent is a fictional element that appears in the "Starfall" science fiction series by author Kaelen Vance. It is a highly reactive and unstable element, primarily known for its use in advanced propulsion systems. In the lore of the series, Inispersent's properties allow spacecraft to achieve speeds far exceeding conventional FTL drives, making interstellar travel significantly faster and more efficient.
The extraction and refinement of Inispersent are depicted as complex and dangerous processes, requiring specialized technology
Different factions and corporations in the series compete for control over Inispersent resources and manufacturing capabilities.