Popular Depictions in Science Fiction
By the 1950s, hyperspace travel was established as a typical means for traveling. Many stories feature hyperspace as a dangerous place, and others require a ship to follow set hyperspatial "highways". Hyperspace is often described as being an unnavigable dimension where straying from a preset course can be disastrous.
In some science fiction, the danger of hyperspace travel is due to the chance that the route through hyperspace may take a ship too close to a celestial body with a large gravitational field, such as a star. In such scenarios, if a starship passes too close to a large gravitational field while in hyperspace, the ship is forcibly pulled out of hyperspace and reverts to normal space. Therefore, certain hyperspace "routes" may be mapped out that are safe, not passing too close to stars or other dangers.
Starships in hyperspace are sometimes depicted isolated from the normal universe; they cannot communicate with nor perceive things in real space until they emerge. Often there can be no interaction between two ships even when both are in hyperspace. This effect can be used as a plot device; because they are invisible to each other while in hyperspace, ships will encounter each other most often around contested planets or space stations. Hyperdrive may also allow for dramatic escapes as the pilot "jumps" to hyperspace in the midst of battle to avoid destruction.
In many stories, for various reasons, a starship cannot enter or leave hyperspace too close to a large concentration of mass, such as a planet or star; this means that hyperspace can only be used after a starship gets to the outside edge of a solar system, so the starship must use other means of propulsion to get to and from planets. The reasons given for such restrictions are usually technobabble, but their existence is just a plot device allowing for interstellar policies to actually form and exist. Science fiction author Larry Niven published his opinions to that effect in N-Space. According to him, such an unrestricted technology would give no limits to what heroes and villains could do. In fact, every criminal would have the ability to destroy colonies, settlements and indeed whole worlds without any chance of stopping him.
Other writers have limited access to hyperspace by requiring a very large expenditure of energy in order to open a link (sometimes called a jump point) between hyperspace and normal space; this effectively limits access to hyperspace to very large starships, or to large stationary jump gates that can open jump points for smaller vessels. These restrictions are often plot devices to prevent starships from easily escaping by slipping into hyperspace, thus ensuring epic space battles. Hyperspace is often depicted as blue, pulsing with Cherenkov radiation. An example of this is the "jump" technology as seen in Babylon 5. In addition, a jumppoint into hyperspace is seen as yellowish in color because of the redshift effect, and jumppoints leading out of hyperspace are seen as blue. Only large starships and jumpgates can create jumppoints, as well as the Vorlon-enhanced Whitestar ship. Detailed depictions are listed below.
Read more about this topic: Hyperspace (science Fiction)
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