Hyperspace
is a trans-spatial condition of time and space that exists outside normal space. Union Transpatial Physics knows seven States of Hyper Space or sometimes called the OmniVerse-Onion. Psionics, Trans Light Travel, TransDim Shields, Translocator Cannons and TransMatter Radio occurs within those “Higher States of Space and Time” Hyperspace is NOT an alternate dimension or a Parallel Universe but it exists “between” Realities. There might be more Hyper Space Types than currently known to Union Science.
Hyperspace allows a form FTL travel that is considered to be unsafe and dangerous, abandoned by all known Space traveling species once they reach TL 4. It also allows Trans light facsimile technology (TLFAX).
See also Hyper Space