For the relativity theory the expansion of the universe if gives geometrically,not are the energies that Iran speeds greater than the speed of nothing by the General theory of relativity could travel faster than the speed of light. I believe that the idea of that if the spacetime was discrete in some occasion as in the Inflation,some particles could run with speed greater than the speed of light,so the photons would have variable a speed of light would be constant light speed into of spectrum of energy major,and others photons with major energy,in the blue frequency would have speed of light greater than the speed of light is in the vacuum
As of the end of the original Firefly series,  most of what is known about Companions is derived from Inara herself and incidental discussions with and about other Companions and Companion-trained individuals. These sources suggest that the extensive Companion training begins either in childhood or young adulthood and includes social and physical grace, self-defense, at least some performing arts, and psychology. The structure and rituals of Companions resemble that of religious orders, though it is unconfirmed if this is the case. Comments made by Inara suggests that she is displeased with alterations to the traditional training she underwent, which is resulting in less-experienced novices being introduced to certain aspects of the profession prematurely instead of when she feels they would be ready.
Lion is an enigmatic creature whose sentience and sapience is somewhat questionable. However, he seems to act like a typical house cat, doing things like chasing butterflies in "Rose's Scabbard" and snapping at the dragonfly-like lights created by Sardonyx in " Cry for Help ". Much like a normal animal, he rarely changes his expression and for the most part, he is quiet and docile. Though he is considered a "pet" for Steven, Lion looks after himself and often sees to his activities. While Lion does not seem to acknowledge Steven most of the time, he does appear to understand Steven to a certain extent, responding whenever Steven needs him in mysterious ways. " Lion 2: The Movie " shows this understanding when he takes him and Connie to Rose's Secret Armory . Steven remarks how Lion is not "trained very well", and in " Lion 3: Straight to Video ", Lion nearly smothers Steven's face to show him the dimension in his mane when Steven said he wanted to know more about his mother.