Time travel is, as the name suggests, the (usually controlled) process of travelling through time, even in a non-linear direction.
Some individuals, by necessity, may seek to take what the Doctor once described as "the long path" (DW: The Girl in the Fireplace) spending hundreds of thousands of years patiently waiting to return to a desired time. (NA: Birthright) A less arduous method would involve cryogenics or some other form of life suspension.
Time travel is any movement through time that is not equivalent to the normal course of time, in particular a person or object's travel leading either to the "past" or faster as usual to the "future".
Any given time traveller moving from one time to another at a rate greater than the local entropic norm (i.e. moving forward in time faster than the normal "subjective second"-to-"objective second" ratio), or in an reverse entropic vector (i.e. backwards in time), has to move outside of normal space-time. This movement was mathematically calculated by a scientist named Feynman to be a predictable curve.
Thus, people displaced in time can use the data points of the "start" and "end" points of their journey to caclulate their return trajectory along their circumstance-specific Feynman Curve to return to their own time. It can also be used to calculate a path to initiate a controlled time displacement.
The return journey along that Feynman Curve is entirely dependent on the actions (or more accurately, the non-actions) of the displaced personnel. If their interaction is kept to a minimum and the integrity of the timestream is maintained, their Feynman Curve also retains its integrity and the displaced personnel can return to their own time in the same manner they were initially displaced, be that a slingshot trajectory around a star or using the Bajoran Orb of Time.
However, if the actions (or non-actions) of the displaced personnel cause a major disruption in the timestream, a new future is created from that point and the Feynman Curve of the displaced personnel collapses. This is because the Curve's end point--the traveller's start point--no longer exists, except in a now parallel reality completely disconnected from the timestream the traveller currently inhabits. An analogy of this is the severing one end of a rope bridge: The other side of the chasm is still there, but the traveller's connection to it is now lost, and they have to consider another means to get there--such as interdimensional travel.
As to how that is possible, two solutions are suggested, but neither is testable—so both have equal validity. One solution is that if you, say went back and killed your grandfather, a temporal feedback loop would be established that would collapse into a hyperdimensional black hole, cutting the loop off from any interaction with the rest of the universe. The end result would be as if the events leading to that feedback loop never happened. The second solution states that the instant you killed your grandfather, you'd create a branching timeline. That is, two universes would now exist—one in which your grandfather lived, and one in which he died.
If he died, you can't come back and kill him. Not from the new timeline. But since you came from the old one, there's no paradox. However, because the Feynman curve you followed no longer exists, you are trapped in the new timeline you created, with no way to get back. In effect, you're a large virtual particle that has tunneled out of the quantum foam.
Time travel is a recurring theme and part of the mythology on Lost. First hinted in the season 2 episode, "The Long Con", the Island constantly moves, and by using an ancient wheel underneath the Orchid, the electromagnetic power on the Island allows the inhabitants to travel through time. Other cases feature the risks of time travel, which often end with death, due to the inability to find a constant.
FARADAY: The Island... Think of the Island like a record spinning on a turntable... only now, that record is skipping. Whatever Ben Linus did down at the Orchid station... I think... it may have... dislodged us.
In the Orchid orientation film, Dr. Edgar Halliwax talked of a how the Island's properties allow the DHARMA Initiative "to conduct unique experiments of both space and time". He placed rabbit number 15 inside a device he called the "vault", which was constructed adjacent to "negatively charged exotic particles". He explained how the rabbit would travel 100ms ahead of four dimensional space - three consisting of space and one of time. ("There's No Place Like Home, Parts 2 & 3")
Another example was when Ben successfully moved the island. He accomplished this by placing metallic objects inside a chamber in the Orchid, something the orientation film warned against, and blowing a hole through the wall of the chamber. This allowed him to access the frozen wheel. ("There's No Place Like Home, Parts 2 & 3")
When Ben turned the frozen wheel December 31, 2004, ("There's No Place Like Home, Parts 2 & 3") he found himself in the Sahara Desert 10 months later on October 24, 2005. ("The Shape of Things to Come") The result of the wheel being turned was that the survivors remaining on the Island randomly traveled through time until Locke put the wheel back on its axis, as he too flashed to the exit in the Sahara Desert. ("The Life and Death of Jeremy Bentham")
When the survivors left behind after Ben's wheel turning experienced a time travel change, there was a blinding purple flash (similar to when the Hatch imploded). After Locke fixed the wheel, there was one last flash, but this time the flash was bright white, rather than purple. In all instances, the travelers experienced severe head pain, most likely caused by the extremely loud noise occurring during the flashes.
People who weren't affected by the time travel appeared to be unaware of the blinding flash and loud noise. For example, Danielle didn't react to or mention the noise or light before Jin disappeared, and when he reappeared in her future, she thought Jin was sick because he disappeared ("This Place Is Death"). Ethan also did not react to the noise or light when it began, but kept the gun aimed level at Locke, and said "Goodbye, John Locke" ("Because You Left"). Desmond may have been the sole exception, as he appeared to react to both the noise and flash moments before Daniel disappeared in front of him. ("Because You Left")
JULIET: So, what, is this amnesia?
Faraday demonstrated to Desmond that he could transport a rat's consciousness forward in time. He did that by using a machine of his own design which emitted an unknown radiation, set to 2.342 and oscillating at eleven hertz. Once exposed, the rat was able to move directly from one end of a maze to another. Faraday explained that he was not going teach the rat to run the maze for another hour. Later, however, the rat died of what Faraday said was likely a brain aneurysm. ("The Constant")
Neither Desmond or Minkowski were in contact with the machine prior to moving through time; however it was implied that their proximity to the Island caused their temporal displacement to happen and that moving at a specified bearing when approaching or leaving the Island would avoid the phenomena.
Desmond's consciousness randomly travelled through time between December 24, 2004 and an unknown date in 1996. Faraday stressed that for a mind to survive the continued transitions of temporal displacement, and to make it stop, it needs to find a "constant", or anchor, to focus on. This constant must be something that means a great deal to the person, and it has to be present in both time periods. For his constant, Desmond chose Penny.
In his journal, Daniel noted that if things should go wrong, Desmond would be his constant. Minkowski did not survive the temporal displacement (presumably because he lacked a constant); he went into convulsions and died. Before he died, however, and during his convulsions, he stated his inability to "get back". Faraday implied this would happen; more precisely, he told Desmond that the travel would become increasingly chaotic and he'd be unable to tell which time was which. He'd also eventually find it increasingly difficult to "jump back" until it was impossible.("The Constant")
Unlike flashbacks and flashforwards, where a person's past or future experiences (relative to the current narrative) are shown, the person is conscious of their actions and surroundings and is aware of the fact that he or she is being/has been moved through time and/or space. They suffer from disorientation and confusion due to being unable to confirm to which time they belong. The transition on screen is sharp and comes without warning, as opposed to flashbacks which are smooth, have a signature sound, and sometimes allow sound to leak in from the past. They both are representations of a character's past and have exclusively taken place on or near the island. It has been neither confirmed nor denied that flashbacks are purely a literary device or not. Similarly, after using the fail safe key, Desmond suffers from a series of flashes which were disordered, unlike flashforwards which are shown in a linear fashion.
We really do not have time for me to try to explain. You have no idea how difficult that would be, for me to try to explain this--this phenomenon to a quantum physicist.
The linear view of time is when people see time as travelling in a straight line, so what has happened is in the past, the present is now, and the future, untouched, hasn’t happened yet, rendering it subject to change. One of the biggest challenges of time travel storytelling is presenting the non-linear view of time travel without creating a temporal paradox.
A temporal paradox is a "paradoxical situation in which a time traveler causes, through actions in the past, the exclusion of the possibility of the time travel that allowed those actions to be taken". One such temporal paradox is known as the Grandfather Paradox. This paradox relates to the questions raised if a time traveller killed his own grandfather before the traveller's father was fathered. Would the traveller cease to exist? And if the traveller did cease to exist, then who killed the grandfather?
Desmond had flashes of Charlie's death, and attempted to intervene; however, after each successful attempt, Desmond received a new flash, an alternate version of Charlie's death. The fact that Desmond succeeded at all in saving Charlie proved that details could be changed, but that the end result remained inevitable: Charlie had to die. ("Flashes Before Your Eyes")
When Desmond first encountered Ms. Hawking, she explained there are rules for time travel, that "the universe has a way of course correcting" or fate may intervene to any changes. ("Flashes Before Your Eyes")
Daniel Faraday, who spent his "his entire adult life studying space time" later stated that "You cannot change anything; you can't. Even if you tried to, it wouldn't work... whatever happened, happened". ("Because You Left")
Sawyer expressed deep frustration, misery, and anger at these rules, and their inability to change events. When Sawyer believed Kate, Aaron, Sun, Jin, Jack, Desmond, Sayid, and Hurley died on the freighter, he furiously pounded on the Swan door to try and prove events could be changed, before relinquishing.
The time travelling of Desmond's consciousness between 1996 and 2004 led him to visit Faraday at Oxford. ("The Constant") Eight years later, Desmond visited Oxford once more while searching for Faraday's mother. ("Jughead") Faraday originally had no memory of that first meeting. While this could lead to a paradox where the individual would have conflicting memories, one with a meeting and one without, it was implied that Faraday's apparent memory loss from overexposure to radiation solved the paradox.[source needed] It may also be part of the course correction of which Ms. Hawking spoke.
Eternalism is a philosophy of the universe that dismisses traditional ideas about the flow of time. In Eternalsim, the events that happen in the course of time are fixed. Past, present, and future have prove to be inaccurate because of Special Relativity (my second may take longer than your second). In the Block Universe what is happening is what happened.
Presentism is another theoretical branch that eliminates the potential of paradoxes. Time is perpetually in the moment. Before and After replace Past, Present, and Future. Sayid kills Ben after the adult Ben tells him he is a killer and before Ben becomes an adult. There is no paradox, because Death is just a temporal border, and the energy of the lifeforce must be conserved. The body of Ben the boy may cease to operate, but the lifeforce of Ben will continue to exist although (like Jacob) may be altered.
Dr. Pierre Chang's transmission was sent forward 30 years into his future through a pinhole he was attempting to keep open. Dr. Chang informed viewers that he and many of his colleagues would be dead, killed in a kind of violent purge which he was "powerless to escape". Chang gave details anachronistic to his time, information he gathered from a source he calls credible. He stressed the importance of reconstituting the DHARMA Initiative and continuing his research, and then pleaded for help in changing the past and saving those who would be killed, before the transmission was shut off.
The effects of time travel on the traveller seem to be similar whether the travel is physical, or where just the consciousness travels. In both cases, temporal displacement causes nose bleeds, headaches, forgetfulness, and in the worst cases, death by apparent brain aneurysm. However, the severity of the effects appears to differ from person to person.
In some cases, traveling through time physically seems to cause temporal displacement of the human consciousness. This was the case with Charlotte, who first experience nose bleeds, headaches, and some minor memory loss, but eventually died when the flashes were too frequent and close together. ("This Place Is Death")
Physical time travel is not necessary for temporal displacement to occur. Time travel of the consciousness can also cause the traveller to experience the same symptoms and eventual demise, as in the case of Minkowski and Daniel's rat. The finding of a constant, as Desmond did, nullifies the temporal displacement and its effect, allowing the traveller to survive. ("The Constant")
Proximity to pockets of electromagnetic energy appear to intensify the effects, where people near or on the Island experienced severe symptoms very quickly and some died, while the effects for Theresa appear to differ. Theresa is still alive after an extended, but undisclosed length of time, though she is experiencing temporal displacement like Charlotte experienced. ("Jughead")
The concept of the butterfly effect holds that a minor change in circumstances of the past causes a large change in outcome of the future, thus causing an alternate reality. However, Daniel explains to Jack and Kate how a little pebble won't change the flow of a waterstream, but how a a big boulder will do the trick. He thinks that detonating the Jughead at the Swan site will change the course of history. (Deleted scenes) Non-canonical examples in Lost include several videos shown during Comic Con 2009:
Time travel is the process of leaving the timestream at a given point, traversing through the timeless realm of Limbo for a timeless interval, and re-entering timestream at another point, not having physically aged in transit. Since there are alternate futures, it is not always possible to travel to the same one. Since traveling into the past always affects reality in at least a minute way, one can never physically travel to one's true past, which is by definition the past in its original state, uncomplicated by extra temporal factors.
Limbo is a dimension that is unique in that it exists outside the timestream and thus possesses no time. Reality in Limbo is comprised of a single, ever-changing moment in which everything that ever was, is, and could be coexist. Human beings within Limbo might imagine that time passes there, since they are conditioned to think in such a way, but they cannot age or die there.
There are three possible methods of time travel in the Marvel Universe: a. Time travel machines. b. Magic. c. Personally generated energy. All methods involve generating "chronal displacement inertia" freeing one's chronological position in the timestream (just as escape velocity frees one from Earth's gravitation), skimming through the extra-temporal realm outside the timestream (Limbo), and re-entering the timestream at another chronological position. Because no time exists outside the timestream, the perceived duration of the passage through limbo may be anything from non-existent to an eternity.
The Marvel Universe is part of a multiverse (a system of related universes) which diverge from one another at critical junctures. The act of time travel always produces a critical juncture diverging a new alternate timeline or world at the moment one enters the reality of another time period, past or future of the time period set out from. It creates one timeline where an extratemporal person or element materialized via time travel, and one "virgin" timeline where that person or element did not.
Because it is impossible to travel to the "virgin" timeline, and because divergent timelines are dimensionally displaced from one's root timeline, all time travel actually involves dimensional travel. A time traveler does not truly travel straight backwards or forwards in time, but backwards or forwards and a bit off to the side to a divergent timeline now running parallel to one's timeline of origin. Since this timeline will have been identical to the "virgin" timeline until the moment of divergence, there will be virtually no differences between the two timelines until most time travelers have no reason to be aware that they are not on the "virgin" timeline.
If one travels a second time to an era one has already been to, one will not materialize on the "virgin" timeline nor the timeline diverged by one's previous trip, but a third timeline diverged from one or the other. A time traveler can never travel back to the exact same timeline more than once. Again, since the second and third divergent timelines are identical until the time traveler's arrival, they will be indistinguishable at first.
When one travels a second time to any era in which one already exists, it will be possible to meet a temporal counterpart of one's self already there. A new counterpart diverges into being every single time a time traveler travels to a timeline one already exists in. Subsequently, multiple temporal counterparts could co-exist through multiple time trips to the same time period.
The co-existence of multiple counterparts of the same being on one timeline does not cause time paradoxes. Time paradoxes are only possible in single timeline universes. Altering an incident in the past will indeed affect the future reality of the timeline diverged by the time traveler's presence. One can create any number of different divergences by one's significant actions, the act of time travel being but the first. Whether one will be able to return to the present of the timeline where one did no reality-tampering divergences or one which diverged as a consequence of one's past actions is a function of the means of time travel.
Returning to one's present also creates a divergent reality. If one has been gone any length of time, one may find differences have accumulated in accordance with the length of time one was away. Selective alterations in the present as a consequence of the time traveler's actions in the past do not occur. An alteration in the past will create an entirely new timeline with events proceeding smoothly from the point of divergence. To the denizens of that timeline's "present", the past is a continuous series of events that always happened as they happened. Were one to see selective dematerializations, they would either be caused by something other than the act of time travel unto itself or would be hallucinations.
Time travel was a form of passage through the spacetime continuum, by moving to different points or destinations, "backward" or "forward", via a "fourth dimension" (time), often while moving through space. Temporal displacement also refers to time travel.
Because of the risks inherent to altering the outcome of historical events, via figures from one era interacting with another (usually the past), time travel was closely monitored, regulated and discouraged. In the Federation, the Department of Temporal Investigations was charged with this task.
Despite the risks, time travel was a fairly common occurrence. Individuals and starships, in the Federation and elsewhere, made many trips through time. Crew-members on Starfleet vessels, most notably the starships Enterprise, interacted repeatedly with figures and events in other temporal eras, resulting in the creation of alternate timelines.
Various places in the galaxy
The term time travel refers to travel from one point in time to another, analogous to travel from point to point in realspace or hyperspace. It does not generally refer to a body's natural experience of the flow of time along with the rest of the universe; rather, it refers to travel to the past against the natural flow of time, or travel to the future at a rate faster than that of the rest of the universe.
While time travel was an exceedingly rare phenomenon, a few cases have been partially documented. No record of deliberate, physical time travel is known—all known cases involved unusual hyperdrive malfunctions, the effects of the Force, or similar exotic events.
The Darkstaff was an artifact that was discovered by Darth Rivan. Rivan had strange dreams about being called by the artifact and tracked it down to Almas. Rivan believed that it was the Darkstaff that drew him to Almas and the Cularin system, hoping to use him as a way to leave the system. Further investigation led Rivan to believe that the Darkstaff was not intentionally created, but was rather the byproduct of another experiment.
Measuring a meter in length and four centimeters in diameter, the Darkstaff seemed to consume any light around it. It also consumed any Force energy around it, literally feeding on the Force. According to Rivan's dreams, the Darkstaff had already caused some ancient tragedy in the Cularin system, and had been hidden away to prevent any further catastrophe. Rivan believed that the destruction of the planet Oblis, which created the Cularin system asteroid belt and a nexus of dark side power, was the aftermath of this event. The Darkstaff wanted to be discovered by Rivan so that he could use it as a weapon against his enemies, so it invaded his dreams. Its release would allow the Darkstaff to gain power, both for itself and over Rivan, until it eventually consumed Rivan himself. Rivan, however, refused to go in search of the artifact, fearing that its release would cause great damage to the galaxy. Rivan later managed to harness the power of the Darkstaff to create a Force Storm that swept him through time and space to the planet Ruusan, during the battles between the Jedi Army of Light and the Sith Brotherhood of Darkness several centuries later. There, with his Force power drained by the Darkstaff, he was easily slain by a Force-sensitive warrior.
Centuries later, Darth Rivan's writings were discovered by the Jedi Knights who built the Almas Academy. Word of the Darkstaff reached the ears of Len Markus, who set out to search for it. Len Markus was observed removing something from the Cularin system's asteroid belt, an event which preceded the appearance of strange creatures hiding among the asteroids. Shortly after the Invasion of Naboo, the Cularin system disappeared for several years, before reappearing just as suddenly. Many believe that Markus found the Darkstaff, and that its release from captivity was the cause of the disappearance of the entire Cularin system.
In the last decades of the Galactic Republic, the Temple of Tet-Ami on Benja-Rihn was the subject of much speculation. Built some four thousand years earlier, the temple commemorated a great hero called Tet-Ami, the Time Guardian, who saved the armies of Carthas from a plague of insect-like beasts in an epic battle. The temple contained a statue of Tet-Ami, holding an artifact called the "Orb of Passage" which was said to control the flow of time. Sometime after its construction, the orb was secretly taken by the Jedi Order, and the temple was lost.
Just as the rediscovered temple was about to be excavated by an archaeological dig, the Jedi High Council sent Mace Windu to secretly enter the temple. His mission was to place the orb into the outstretched hand of the statue of Tet-Ami before the archaeologists arrived. Windu had no trouble entering the cave without being seen, and easily fought off a few ancient battle droids who guarded the temple's inner sanctum. He was surprised, however, to find that Tet-Ami's statue resembled him.
Even more surprising was what happened when Windu placed the orb in the statue's hand. Windu was sent backwards in time, appearing on a battlefield just as the Carthasian armies were about to be attacked. Windu joined the fight, and turned the tide of battle. After spending four days in the past, he returned to his own time period, arriving just as the archaeologists entered the temple.
When he returned to Coruscant, Yoda revealed to Windu that the Jedi Council had long known the secrets of Tet-Ami, and were simply waiting for the orb's energies to recharge, and for a Jedi Knight named Mace Windu to join the order, take the Orb of Passage back to Carthas, and win the battle. Thus, the time paradox was neatly resolved. In Yoda's words, "Always must a Jedi start the job he finished!"
In 212 BBY, Bosbit Matarcher engaged the hyperdrive on his Delemedian starhopper, intending to take a short trip from his homeworld of Delemede. Due to faulty relativistic shielding, what he experienced as a two-hour trip took 190 years from the perspective of the rest of the galaxy. His experiences brought him brief notoriety when he arrived in 22 BBY, resulting in a HoloNet News interview. Matarcher took the experience in stride, as his run-down homeworld had become prosperous in the meantime. However, he decided to let someone else fly him home.
Matarcher's trip may not be strictly defined as time travel to the future, as he did not "skip over" any period of time. Instead, time merely passed in a distorted manner for him due to the well-known effects of time dilation.
Renowned gambler Kinnin Vo-Shay's experiences were similar to those of Bosbit Matarcher. Circa 50 BBY, Vo-Shay's ship, the Ashanda Ray, was caught in the Tyus Cluster, a mass of black holes. Vo-Shay would have died, crushed in a black hole with his ship like many travelers before him. However, one of the Tyus Cluster's previous victims was the Jedi Master Aryzah, who had managed to survive the destruction of her body as a Force ghost. She made contact with the slightly Force-sensitive Vo-Shay, and helped him fly the Ashanda Ray out of the cluster.
However, the high gravitational fields of the region had caused significant time dilation. In Vo-Shay's words, "at the center of that mass of ugly black holes, time was nonexistent." When Vo-Shay and Aryzah escaped the cluster, he found that some fifty years had passed for the rest of the Galaxy since Vo-Shay's disappearance.
While working as diplomatic couriers, the droids R2-D2 and C-3PO were assigned to escort the child Prince Plooz from Sooma to his home planet, Alzar. Along the way, their ship were attacked by the forces of General Sludd, a renegade from Alzar who was plotting to kill the prince in order to start a war which would allow him to conquer both planets. In an effort to escape, R2-D2 engaged the hyperdrive even though Prince Plooz, in an effort to "help", had damaged the anti-matter power systems. The droids and the prince jumped to hyperspace just as Sludd's electron torpedoes detonated. Whether because of the damage to the hyperdrive power systems, the explosion of the nearby electron torpedoes, or both, their ship came out of hyperspace in a starless void. Their only apparent exit was a rift which took them to the Endor system—but when they went through the rift, they discovered that they had not only traveled to another system, but to another time.
Plooz, believing himself to be in his home system, ran away from his caretakers in an escape pod which took him to the forest moon of Endor. After some adventures on Endor, where R2-D2 and C-3PO met the Ewoks of Bright Tree Village and rescued the royal toddler from a group of Duloks led by King Gorneesh, the droids and the prince returned to their ship and went back through the time rift. They arrived only minutes after they left, escaped Sludd's forces, and brought the prince back to Alzar safely.
The timing of this incident is unclear; while C-3PO and R2-D2's readings on arrival in the Endor system implied that they had traveled one hundred years into the future, the Ewoks and Duloks they met on Endor included such figures as Wicket W. Warrick and Chief Chirpa who participated in the Battle of Endor. At the time of their mission on Alzar, the two droids were traveling independently, which implies the incident took place while they were temporarily separated from their usual assignments on board the Tantive IV. This would mean that the incident involved a displacement of less than twenty years. When C-3PO returned to Endor in 4 ABY, he did not seem to recognize any of the Ewoks he had met previously, though memories of the golden droid's previous, seemingly supernatural appearance may have affected the Ewoks' worshipful attitude towards him.
In 9 BBY, young Luke Skywalker ran away from home after an argument with his uncle and guardian Owen Lars. The disagreement stemmed from Lars' refusal to give his nephew any more information about Luke's father, Anakin Skywalker (by then known as Darth Vader.)
As Luke wandered into the Tatooine desert, he became lost in a sudden sandstorm. Soon after seeing a vision of a tall dark figure, he met a boy around his age calling himself "Annie." Though Luke did not realize it, he was speaking to his father as he was in another time. The two boys realized they had much in common: both were natural pilots, both wanted to leave Tatooine someday, both could sense events before they happened, and neither one knew their father.
Discovering the body of a Tusken Raider buried in the sand, the boys took a gaffi stick from the corpse and sought shelter in a nearby cave. A pack of womp rats drove them back out into the storm, where they stumbled upon an R5-series astromech droid. Annie rigged up the astromech's motivator to explode, sending up a flare. Instead of attracting rescue, the flare attracted a krayt dragon, which attacked the two boys. Losing sight of Annie, Luke threw the gaffi stick into the throat of the dragon, killing it. Luke fell unconscious, and was later found by his uncle and a rescue party. While there was no sign of the krayt dragon or Annie, Luke was convinced that his experiences were more than just a dream.
During the Galactic Civil War, Luke Skywalker came across an abandoned spacecraft of unknown origins while on a reconnaissance mission for the Rebel Alliance. A set of image tapes recovered from the derelict, once decoded, showed that the ship was an artifact of the extinct Jerni civilization. These tapes also talked about an artifact called the "Eternity Crystal", used by the long-lost Jerni civilization to control the flow of time. According to the tapes, this power was used to prevent conflicts and crises within their society by reversing their history and starting again on a different path. The tape also gave the location of the crystal, in a vault near Adony Station on the planet Jerne.
The Rebel leadership quickly realized that such power could be used to their advantage in the war—for that matter, it could be used to prevent the rise of the Galactic Empire and stop the war from even starting. Luke, together with his droid R2-D2 and Princess Leia Organa, was sent on a mission to Jerne to investigate.
As it turned out, the "Jerni" ship and the image tapes on board were fakes created by Imperial technicians under the orders of Darth Vader. The story of the Eternity Crystal was only the bait for a trap intended for Princess Leia, who Vader knew would want to change history to bring back her beloved Alderaan. As soon as they arrived on Jerne, the three Rebels were immediately met with opposition from the waiting Imperial garrison. They were forced to ask a group of local guerrillas and bandits led by Meeka Reen for assistance, but Reen betrayed them in an attempt to take the crystal for herself. Luckily for Skywalker and Organa, this meant Reen and her henchmen were killed by the Empire's traps, while the Rebels escaped Jerne unharmed by stealing Lord Vader's TIE shuttle.
At another time during the Galactic Civil War, Princess Leia Organa, fleeing from the Empire, crashed on an unknown planet. There, she discovered what seemed to be the remains of stormtroopers who had been dead for many thousands of years.
Before she could investigate further, however, she was chased by three stormtroopers and discovered a group of "spirits"—Tilotny, Horliss-Horliss, Splendid Ap, and Cold Danda Sine—who had immense powers, capable of shaping space and time. While the spirits were in the middle of a conversation, they noticed Leia and the stormtroopers who had been chasing her. The spirits decided to "play" with the four Humans, and managed to kill all of them in the process.
Once they were finished, though, Splendid Ap was tasked with returning the four beings to normal. Ap resurrected the three stormtroopers, but not having a concept of time, also transported them back 8,000 years in the past; these were the stormtroopers whose remains Leia had encountered when she crashed. Leia, however, escaped the stormtroopers' fate and was restored just as she had been previously in the correct time.
Heggs claimed that while on Nimba 5 hunting bemis, he came across a nest of grumph eggs. Soon afterwards, though it was the middle of Nimba 5's long winter, he found a lush jungle nearby. In the jungle, he came across a young man being chased by a grumph. Heggs was unable to affect anything in the jungle in order to help the young man, though he was able to communicate with him. However, he somehow discovered that he was viewing an incident in the past, but that changes he made in the present would go backwards in time. Apparently, the grumph was experiencing time in reverse, so destroying an egg in the present would cause it not to exist in the past. Heggs began destroying the grumph eggs, eventually destroying the egg which erased the grumph which menaced the young man. Heggs determined that the young man was himself in an earlier time period, since he recognized his initials on the young man's backpack.
Other than Heggs's story and the sack of grumph eggs he brought with him to Mos Eisley, no evidence of this incident exists. It may only have been a nonsensical story which Heggs used to separate Travis from his bottle of Vaschean rye.
Lak Sivrak, a Shistavanen scout who left the Imperial Survey Corps, met the Lamproid Dice Ibegon in Chalmun's Cantina in Mos Eisley in 0 BBY. Coincidentally, they met on the same day Luke Skywalker and Obi-Wan Kenobi contacted Han Solo and Chewbacca to arrange passage to Alderaan on the Millennium Falcon.
Ibegon recruited Sivrak into the Rebel Alliance, and the two fell in love. The couple was parted when Ibegon died in Sivrak's arms during the Battle of Hoth. Sivrak continued to fight with the Alliance, until he too was killed during the Battle of Endor. In his last moments, Sivrak remembered pivotal moments of his life, including his lover's death and the day he and Ibegon saw Skywalker and Kenobi enter Chalmun's Cantina. He was guided in these reminiscences by Ibegon's spirit, which took him to earlier points in his life through the Force. Reunited in spirit, the lovers observed the celebrations of the Empire's defeat.
Jacen Solo learned a Force power called "flow-walking" from the Aing-Tii. This ability allowed him to not only view the past and future, but also leave an imprint of himself there. He used this power in 35 ABY to witness the crash of the Tachyon Flier in 27 ABY, and leave an imprint of himself for his mother, Leia Organa Solo, to follow.
Jacen Solo's use of flow-walking may be the only recorded deliberate use of time travel. However, it is unclear whether or not this ability counts as actual traveling through time: It did not involve physical movement through time, and it is unknown whether or not someone using this ability actually went back to the past or if they merely viewed it the way one would view a holo-recording.
In 41 ABY, Jedi Knight Jaden Korr received an overpowering vision that he felt compelled to investigate. What he discovered was an ancient dreadnaught from the days of the Old Republic that had been thrown forward in time some five millennia . The ship was populated by a crew of Sith warriors and a lone Jedi attempting to stop the Sith from using its cargo, a special ore that made those who use the Dark side of the Force nearly invincible.
Time travel was also a plot device used in Alien Exodus, a canceled and thus non-canonical novel. In Alien Exodus, the humans of the Star Wars galaxy are revealed to be the descendants of a group of refugees from Earth whose ship accidentally traveled through a wormhole. This wormhole took them not just to another galaxy, but to another time, billions of years in the past: in other words, they found themselves "a long time ago, in a galaxy far, far away."
Another non-canon story which links the Star Wars universe with Earth is Into the Great Unknown part of Star Wars Tales 19. In this story, a hyperspace accident leads Han Solo and Chewbacca to crash the Millennium Falcon on an unknown planet which is obviously Earth. 126 years later, the wreckage and Han Solo's body are discovered by Indiana Jones. Depending on how long ago "a long time ago" is assumed to be, the Falcon's trip in this story may also have involved time travel. In any case, since Han Solo dies in the story, Into the Great Unknown is non-canon.
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about Time travel.
Time travel allows an individual or group of individuals to move to either either forward or backward in time, in such a way as to be able to interact with the surroundings and occupants of that time. Depending upon the nature of the universe occupied by the time traveller(s), it may be possible to alter the past in a way that the travellers’ personal timelines are rewritten. (Which might make a paradox.) Other continuities include divergent timelines in which any change creates a new reality.
Across the Transformers continuities, time travel has been used on several occasions. Most of these have been the result of deliberate technological attempts, while others have been a side effect of an existing technology. More rarely, time travel has been the result of a natural phenomenon. The most common use of deliberate time travel is to return to the past to alter history to the advantage of the traveller.
The first example of time travel was a natural phenomena caused by the Decepticons stealing energy from Dinobot Island. For unknown reasons this caused random time rifts to appear across the globe. Each time rift was connected to a different time period and soon closed naturally. Once the energy stolen from Dinobot Island was returned by destroying the Decepticons' Energon cubes the time rifts ceased.During one of their many battles, the Autobots and Decepticons discovered a time machince called the Dragon Mound. This was a large domed structure inside a stone circle. Inside the dome, touching a strip of runes on the walls activated the device and sent anyone inside back to the Arthurian period of 6th Century England. The wizard Beorht professed to have created it to use as a "time transporter," but he had been unable to use it due to a dragon taking up residence within the mound (hence its name).
Megatron and Shockwave developed a time machine they called a Kronosphere. This was a large green platform, made of several levels of disc-like constructions. To use the device a traveller would stand on the topmost disc. The device operator would program a time zone into the control console to activate the device. The device seems to send its users gradually back through time rather than having them simply arrive at their chosen time zone. If this journey is interrupted, the travellers will be deposited in the time zone they are currently passing through. The Kronosphere was later destroyed in a battle between the Autobots and Decepticons.
The Quintessons later developed a time travel device called a Time Window. This was a large triangular device with a control console attached to the base. Once a destination was programmed into it, the center of the triangle became a portal through which travellers and objects could pass. A copy of the triangular portion of the window appears at the destination time zone. This allows travel back to the departure time zone. While the time window is active it leaks dangerous Chronal energy. This, if left unchecked, can cause time distortions such as time loops and turning back time. Eventually the chronal energy would cause irreparable damage to space-time.
Time travel technology was developed some time before the year 2006. It is not known if this was an Autobot or Decepticon invention. Both sides appear to have had access to the technology, however. Early examples look like a modern art sculpture. Standing in front of the device allows one or more individuals to be transported to their selected time zone. A later version was designed as a door-shaped hole in the wall. When activated, the ‘doorway’ is filled with a swirling red and black vortex. Walking into the doorway will transport an individual to the location selected.
To enable a successful time jump, the balance of mass in the destination time zone must be maintained. To facilitate this, the time machine selects a being of equivalent mass to displace into a holding dimension called Limbo. Those who are displaced, vanish leaving only a pile of ash behind. Once the time traveller(s) return to their own time the displaced individuals reappear.
Bypassing this mass substitution process can have catastrophic consequences for the fabric of space-time. The dark god Unicron forced the Junkions to create a time portal that did just this. It was a giant circular device large enough to reach his arm through. He intended to use the portal to snatch Galvatron back from the past. He was destroyed before he could follow through on his plan, but the Decepticons, Cyclonus and Scourge along with the
bounty hunter freelance peacekeeping agent Death's Head were cast through the portal. Cyclonus and Scourge ended up in Earth's past but Death's Head was lost in time.
Time travel technology appears to be commonplace in this era. Cybertronian ships are equipped with Transwarp drives. This opens wormholes to different time zones. The ship must then fly through the wormhole to arrive at its destination. This process leaves a detectable signature that can be traced and followed by others.
The Beast Wars over, the remaining Maximals, in an Autobot shuttle with Megatron cuffed to the outside, travel forward in time to their Cybertron.
Seeking the protoforms of the Axalon and under the pretense of getting Megatron, Magmatron and his Predacons travel back in time to prehistoric Earth. They are invisible to the Beast Wars by being out of phase in time. A freak accident traps Magmatron in an existence that can observe all time, but not interact with anything physical.
Cryotek wants to
MUFFGLRL MUUGGREAGG MURRRAGGHH conquer time.
The sentient computer Teletran 3 accidentally transported a number of Transformers through time using wormhole technology. This threatened to cause an apocalypse if they were not returned to their own time.
Time travel theory allows for three basic types of universe in which time travel can occur.
The different Transformer continuities appear to exist in different universe types and so each will be discussed separately.
This continuity would appear to exist in either a Type 1 or Type 3 universe. Both War Dawn and Forever is a Long Time Coming show the time travellers becoming a part of the history they are visiting. In both cases the past remains unaltered. This is consistent with a Type 1 universe in which the timeline cannot be changed (and does not feature divergent timelines). It is also consistent with a Type 3 universe in which the timeline cannot be altered in a way in which the time travellers can verify.
A Decepticon Raider in King Arthur's Court doesn’t really offer much evidence to support this, the time machine being little more than a plot device to place the characters in a non-technological society. However, the introduction of a number of anachronisms, such as Starscream’s dynamo and the gunpowder, do not appear to have any impact on the future. This could also imply either a Type 1 or Type 3 universe.
The Beast Wars would appear to take place in a Type 2 universe. Evidence that the timeline can be altered was presented by Megatron who projected an image of a mountain recorded on the golden disc in the future. After locating the mountain in the past he destroyed part of it and then checked the golden disc again to find that the image had changed to reflect the damage he had caused. The future had therefore been altered.
At the same time, however, some comments were made to suggest a Type 3 universe. When Blackarachnia remarked that the history tracks on the Ark had failed to mentioned the presence of an additional Autobot shuttle, Rhinox remarked that "history's still being made," indicating that the Maximals' very use of the shuttle in taking down the Nemesis was the reason that the history tracks did not mention it.
As this is a set in the same universe as Beast Wars, this must also be a Type 2 universe.
This would appear to be a Type 1 universe that includes divergent timelines. The main evidence for this is that the creation of a new timeline would violate mass/energy balance between the old and new timelines. One solution to this is a mass/energy exchange between past and future at the point of time travel.
This sounds very similar to the ‘mass substitution’ process used throughout the UK comic run. There are also a number of ‘futures’ shown throughout the series. Some examples are: the original Transformers: The Movie timeline, the alternate future that Rodimus and company return to after Time Wars, the future where Unicron attacks Cybertron in US#75 and is destroyed, and the alternate future in which Cybertron is destroyed that Galvatron II comes from.
Further evidence of a Type 1 universe is the fact that for the most part the future characters seem to have no memory of events in the past to which they are travelling. The only time a character has any foreknowledge is during Time Wars when Galvatron remembers the battle through Megatron’s eyes. However, his memories of the battle are different. Again this could also imply a Type 2 universe and because the memories of those involved would change as the past changes, it would be difficult for an observer to know if they were in a Type 1 or Type 2 universe.