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Slingshot around the sun

The HMS Bounty slingshots around Sol

Time travel is having the ability to or the act of traveling forward or backward in time, thus breaking the seemingly irreversible flow of time. The study of this phenomenon is one of the focuses of temporal mechanics. Alterations to historical events can cause, among other things, alternate timelines and realities.

As late as 2154, time travel was deemed impossible by the Vulcan Science Directorate. (ENT: "Awakening")

The United Federation of Planets had some form of time travel ability since at least 2268. It is possible that at least some of the regulations regarding time travel trace their origins back to this date. However, capability at this point was most likely inaccurate, making any attempt at time travel experimental and dangerous.

In addition to the Federation, the Borg Collective, Bajorans, and the Klingon Empire were known to have some form of time travel capabilities. (Star Trek: First Contact; DS9: "Trials and Tribble-ations", "Wrongs Darker Than Death or Night"; TNG: "Firstborn"; VOY: "Endgame")

History Edit

Overview Edit

A historical research in 2268 suggests the Federation was capable of controlled time travel and used this ability at the very least for research purposes. (TOS: "Assignment: Earth")

As of 2378, at least forty different instances of some form of time travel had been noted in Federation records. Technologically speaking, the Federation's capabilities concerning time travel, for the most part, remained unclear.

In the 25th century, time travel was mostly possible but still risky. (TNG: "Firstborn")

As of the 26th century, historians and anthropologists used time-travel pods to travel through time to observe historical events. (TNG: "A Matter of Time")

In the 29th century, the Federation has the ability to scan time as well as space, and travel back (and presumably forward) in time to attempt to fix issues and anomalies. (VOY: "Future's End, Part II")

Events Edit

Crewman Daniels, an alleged time traveler from the 31st century, showed Jonathan Archer a group of time-traveling anthropologists from 2769 observing the building of the pyramids of Giza. (ENT: "Cold Front")

The USS Discovery, after being transported to another universe in late 2256 or early 2257 due to Captain Gabriel Lorca's machinations, returned to her original universe nine months later due to difficulties navigating the mycelial network. Her crew ended the Federation-Klingon War shortly thereafter. (DIS: "What's Past Is Prologue", "The War Without, The War Within", "Will You Take My Hand?")

The USS Enterprise first experienced time travel in 2266 when an emergency cold start of its warp drive slingshot the ship and crew 71 hours into the past. (TOS: "The Naked Time")

In 2267, after an encounter with a black star, the Enterprise was hurled three hundred years into the past. Eventually, the Enterprise's science officer Spock devised a method for returning the Enterprise back to its original period. (TOS: "Tomorrow is Yesterday") Though other instances of time travel had been noted, this appears to be the first instance of controlled time travel by the Federation.

Later that year, officers Kirk, Spock, and McCoy traveled to Earth's early 20th century and back via the Guardian of Forever. (TOS: "The City on the Edge of Forever")

Sometime in 2268 the Enterprise traveled back in time, using the light-speed breakaway factor, to 1968 on a historical research mission. (TOS: "Assignment: Earth")

In 2286, Admiral James T. Kirk and his senior staff took a stolen Klingon Bird-of-Prey back in time to the year 1986 to retrieve a pair of then (2286)-extinct humpback whales to save Earth from destruction by an alien probe. (Star Trek IV: The Voyage Home)

In 2371, Captains Jean-Luc Picard and James T. Kirk used the Nexus as a means of controlled time travel, going to just before the destruction of the Veridian star, which Picard intended to save. (Picard arrived at the Nexus from just after the destruction of said star, whereas Kirk arrived from some 78 years before). (Star Trek Generations)

Data, unknowingly at first, traveled back in time to Earth circa. 1900 while investigating an alien species that was later found to be ingesting the neural energy from humans of that time period. The aliens acquired their sustenance by travelling through a portal back to that time and place from Devidia II, and were able to shield their presence from outsiders by being slightly out of temporal sync with everyone else, disguising their presence further by taking advantage of a local cholera outbreak. Picard, Riker, Crusher, La Forge, and Troi soon followed to retrieve Data and assess the situation. As the Enterprise crewmembers covertly endeavored to stop the aliens and return to their own time, Samuel Clemens was suspicious of them, and was accidentally sent to the 24th century with the Enterprise crewmembers (except Picard) when they used the alien portal to return to their own time. Luckily, Clemmens was able to go back through the portal and retrieve Picard, returning each man to his own time period before the Enterprise destroyed the aliens and their portal. (TNG: "Time's Arrow", "Time's Arrow, Part II")

Twice, Q took Picard back in time; once when Picard lay dying in a Starbase Medical facility during a replacement of a defective artificial heart that he received as a result of a a Nausicaan knife being stabbed through his heart immediately after Picard had graduated from Starfleet Academy on Starbase Earhart (TNG: "Tapestry") and another time to the beginning of life on Earth and also back and forth in Picard's lifetime. (TNG: "All Good Things...")

During a transporter accident above Earth in the USS Defiant caused by chroniton particles being accidentally fused to the ship's hull, Benjamin Sisko, Julian Bashir, and Jadzia Dax were sent back in time to early-21st century, just before the Bell Riots. This caused the Federation and Starfleet to vanish in the present, after the time travelers' interference leads to the death of Gabriel Bell before his crucial role in history. Only the Defiant was left protected by the chroniton particles. Sisko took on the identity of Gabriel Bell to ensure that he was remembered for saving hostages during the events, and ultimately allowing the Federation to come into being over a century later. (DS9: "Past Tense, Part I")

While on a trip to Earth to take Nog to Starfleet Acadamy, Quark, Rom, Nog, and Odo were accidentally propelled back to circa. 1950, crashing near Roswell, New Mexico, due to a sabotaged warp core on the ship that had been given to them by Quark's Cousin Gaila. They were able to return to their own time using the reaction between kemocite and the radiation of a nuclear explosion on Earth. These events - which included Quark attempting to alter the timeline by selling goods to the United States of America during the Cold War, and the Ferengi subsequently being interrogated on the suspicion that they were secretly planning an invasion - were kept secret from the public on Earth at the time. (DS9: "Little Green Men")

Akorem Laan, a poet and seer from Bajor's past (which history had recorded had mysteriously disappeared) was sent to the future by the Prophets, believing he was the Emissary of the Prophets. Ultimately, Sisko convinced the Prophets to send Laan back into his own period. Laan later went on to finish one of his prophetic poems, which Kira remembered as unfinished, after Laan had disappeared. Sisko points out that the ending of the poem had appeared in databases, along with new history of his life after his return to Bajor. Kira wonders why she could remember the previous timeline, if said previous timeline had been wiped out. Sisko commented that time works in mysterious ways whenever the Prophets are involved. (DS9: "Accession")

Quinn took the USS Voyager back in time to the Big Bang to hide from Q. (VOY: "Death Wish")

In 2373, the USS Defiant, commanded by Captain Sisko, traveled back in time to 2268 via the Bajoran Orb of Time, in an attempt by Arne Darvin to kill James T. Kirk and change the timeline. The crew of the Defiant stopped Darvin without any notable damage. Major Kira found a way to use the Orb to get the Defiant and its crew back to its own time. (DS9: "Trials and Tribble-ations")

Around Stardate 50814.2 in 2373, the Defiant became stuck behind a barrier on a planet in the Gamma Quadrant, where they met the inhabitants who told them they were the descendants of the crew of that crashed on the planet two hundred years in the past. With foreknowledge of the crash, the crew surmised that if they escaped that fate, the timeline would collapse and everything on the planet cease to exist. The descendant of Jadzia Dax, Yedrin, surmised that it would be possible to save their colony, due to an energy discharge that had hit Major Kira, which had created a subspace doubling effect, and for an instant created corresponding quantum duplicates of every molecule in her body. By amplifying the doubling effect through modifications to the Defiant, they could make a quantum duplicate of the entire ship, and this second ship would then be the one that would crash on the planet preserving the original timeline. However, the other Defiant would be able to escape as well. However, Yedrin had falsified information in his plan, with the intent of making sure that the original (un-duplicated) single Defiant would crash on the planet, thus ensuring that the colony would continue to exist. The Defiant crew ultimately made the decision to sacrifice the ship by flying into the temporal anomaly, in order to save the eight thousand colony members. However, the ship's flight plan was changed by the Odo who lived on the colony so that it would clear the barrier, the future Odo wanting to save Kira's life. This erased the settlement and all of its' inhabitants from the planet. (DS9: "Children of Time")

Kira used the Orb of Time to learn about her mother's life on Terok Nor. Before she began her orb experience, she was warned not to interfere with the timeline by Sisko. Kira nearly assassinated her own mother and Dukat, but changed her mind at the last moment. The orb then returned her to the present. (DS9: "Wrongs Darker Than Death or Night")

During a visit to the planet Golana with her family, Molly O'Brien was accidentally sent three hundred years into the past via a time portal created by the planet's long-lost civilization. She was retrieved by her parents, but was now a teenager reduced to a feral mindset, forcing them to use the portal to send her back. However, their subsequent use of the portal sent the teenage Molly back to shortly after her past self arrived in the past in the first place, allowing her to send her past self back to the present. Shortly after saving the younger Molly, the older Molly ceased to exist, vanishing from existence as the timeline corrected itself. (DS9: "Time's Orphan")

Also in 2373, an encounter with the 29th century timeship Aeon threw Voyager back to 1996, while the Aeon crash-landed in 1967 and was discovered by Henry Starling, who used its future technology to make himself rich. History was corrected when Captain Janeway destroyed the timeship before it could travel to the future and accidentally cause a temporal explosion. Voyager was returned to the correct time by an alternate version of the Aeon from the correct timeline. (VOY: "Future's End", "Future's End, Part II")

An alternate future version of Janeway (from 2404) traveled back to 2378 through the use of a chrono deflector to bring Voyager home from the Delta Quadrant sixteen years earlier than it had arrived in that alternate future. This future Janeway was killed in the attempt but succeeded in returning Voyager home and even delivered a crippling if not fatal blow to the Borg. (VOY: "Endgame")

In 2387, Nero and Spock were sent back in time through a Red matter black hole which had prevented a supernova from destroying the galaxy (but not before it had destroyed Romulus in the process). Nero was sent back to the past to 2233, inadvertently creating a new spacetime continuum where he destroyed the USS Kelvin. He and his crew then went into hiding for twenty-five years awaiting Spock's arrival. Spock arrived in Nero's new timeline in 2258. Nero destroyed Vulcan, while Spock watched from Delta Vega. The crew of the USS Enterprise with the help of James T. Kirk, stopped Nero from destroying Earth. (Star Trek)

Temporal Cold War Edit

The events of the Temporal Cold War further complicated the understanding of Federation time travel capabilities.

As of the 28th century, a time traveling faction represented by a mysterious individual, could only communicate and exchange information and technologies through time, appearing as non-corporeal entities. By the 29th century, this technology was perfected to allow physical travel.

According to a Temporal Enforcement Agent from the 31st century named Daniels, all time travelers were bound by the observance of strict procedures set forth in the Temporal Accords. Daniels stated that the Temporal Accords were enacted after time travel was developed by all time travel-capable species to prevent catastrophic tampering with the timeline.

In 2153, the Sphere-Builders, a group previously thought to possess the ability only to examine alternate timelines, sent Xindi-Reptilians back to 21st century Detroit to develop a bio-weapon to destroy the Human race. (ENT: "Carpenter Street")

Because the Sphere-Builders exist in a separate dimension, they may not have had any involvement in the creation of the Temporal Accords.

Ultimately the war ended when the Na'kuhl returned from an alternate 1944 (created by their very actions) and caused the Cold War to become a war with time-travelers changing time as they liked. Daniels brought Enterprise and Archer back to 1944 to stop Vosk, leader of the Nak'uhl, from returning to the future. With the help of Silik, a member of another faction of the Temporal Cold War, Archer shut off Vosk's compound's shields, allowing Enterprise to destroy it and thus destroying the temporal conduit and killing Vosk just as he was about to travel back to the future. Daniels pulled Archer to a place where they watched the time stream as all of the events that occurred when the Temporal War were undone and time reset itself to normal. Archer refused to have anything to do anymore with Daniels' "damn Temporal Cold War" and Daniels agreed, claiming it was finally coming to an end thanks to Archer's actions. (ENT: "Storm Front", "Storm Front, Part II")

Methods Edit

Appendices Edit

See also Edit

Background information Edit

A list of episodes that feature time travel.

Episode Departure Destination Time travelers Method
"The Naked Time" 2266 2266 (three days in the past) USS Enterprise with crew cold start
"Tomorrow is Yesterday" 2267 1969 USS Enterprise with crew slingshot effect
1969 earlier in 1969 USS Enterprise with crew, John Christopher, and an air police staff sergeant slingshot effect
1969 2267 USS Enterprise with crew slingshot effect
"The City on the Edge of Forever" 2267 1930 Leonard McCoy Guardian of Forever
2267 1930 James T. Kirk and Spock Guardian of Forever
1930 2267 James T. Kirk, Spock, and Leonard McCoy Guardian of Forever
"Assignment: Earth" 2268 1968 USS Enterprise with crew slingshot effect
1968 2268 USS Enterprise with crew unknown
"All Our Yesterdays" 2269 Unspecified past time period James T. Kirk atavachron
2269 c. 2700 BC Spock and Leonard McCoy atavachron
Unspecified past time period 2269 James T. Kirk atavachron
c. 2700 BC 2269 Spock and Leonard McCoy atavachron
2269 Unspecified past time period Atoz atavachron
In addition, it is mentioned that the entire populace of Sarpeidon (including the Prosecutor) as well as many others in the centuries beforehand (including Zarabeth and her family) had previously used the atavachron to travel to the past.
"Yesteryear" 2269 Unspecified past time period James T. Kirk, Spock, and Erickson Guardian of Forever
Unspecified past time period 2269 James T. Kirk, Spock, and Erickson Guardian of Forever
2269 2237 Spock Guardian of Forever
2237 2269 Spock Guardian of Forever
Star Trek IV: The Voyage Home 2286 1986 HMS Bounty with crew slingshot effect
1986 2286 HMS Bounty with crew, Gillian Taylor, George, and Gracie slingshot effect
"We'll Always Have Paris" The USS Enterprise-D (as well as the USS Lalo, the Coltar IV colony, and the Ilecom system) experiences several short time loops (the Manheim Effect) in this episode caused by a "window" into another dimension.
"Time Squared" 2365 6 hours earlier in 2365 Jean-Luc Picard (aboard the shuttlepod El-Baz) energy vortex
"Yesterday's Enterprise" 2344 2366 USS Enterprise-C with crew temporal rift
2366 2344 USS Enterprise-C with crew and Natasha Yar temporal rift
"Captain's Holiday" 27th century 22nd century Kal Dano unknown
27th century 2367 Ajur and Boratus Vorgon technology
"A Matter of Time" 26th century 22nd century Unknown male (aboard a time-pod) temporal distortion
22nd century 2368 Berlinghoff Rasmussen (aboard a time-pod) temporal distortion
2368 22nd century A time-pod temporal distortion
"Cause and Effect" 2278 2368 USS Bozeman with crew temporal distortion
"Time's Arrow" 2368 1893 Two Unnamed Devidians and Data temporal vortex
1893 2368 Two Unnamed Devidians temporal vortex
2368 1893 Two Unnamed Devidians, Jean-Luc Picard, William T. Riker, Deanna Troi, Geordi La Forge, and Beverly Crusher temporal vortex
The two Devidians apparently made many trips before and perhaps during the episode to 1893 that were not shown, via temporal vortex.
"Time's Arrow, Part II" 1893 2368 male Devidian, William T. Riker, Deanna Troi, Geordi La Forge, Beverly Crusher, Samuel Clemens, and Data's headless body temporal vortex
2368 1893 Samuel Clemens temporal vortex
1893 2368 Jean-Luc Picard temporal vortex
"Tapestry" 2369 2327 Jean-Luc Picard's consciousness and Q Q powers
2327 2369 Jean-Luc Picard's consciousness and Q Q powers
2369 2327 Jean-Luc Picard's consciousness and Q Q powers
2327 2369 Jean-Luc Picard's consciousness and Q Q powers
Picard thought the time travel may have been an illusion created by Q.
"Timescape" Time is slowed considerably before being reversed due to being trapped in a temporal fragment. Both the USS Enterprise-D and a Romulan warbird were trapped, and a runabout with Jean-Luc Picard, Deanna Troi, Geordi La Forge, and Data entered the fragment.
"Firstborn" ~2410 2370 Alexander Rozhenko unknown
2370 ~2410 Alexander Rozhenko unknown
"All Good Things..." 2370 multiple jumps between to and from an alternate 2364, an alternate 2370 and an alternate future Jean-Luc Picard's consciousness Q powers
alternate 2370 alternate 3.5 billion years ago Jean-Luc Picard and Q Q powers
alternate 3.5 billion years ago alternate 2364 Jean-Luc Picard's consciousness Q powers
It is unknown how many trips Picard made before he became aware of it (his memory was getting better with each trip).
Star Trek Generations 2293 2371 James T. Kirk Nexus
2371 earlier in 2371 Jean-Luc Picard nexus
Star Trek: First Contact 2373 2063 Borg sphere and crew (including the Borg Queen) temporal vortex
2373 2063 USS Enterprise-E and crew temporal vortex
2063 2373 USS Enterprise-E and crew temporal vortex
"Past Tense, Part I" 2371 2024 Julian Bashir, Jadzia Dax, and Benjamin Sisko transporter malfunction
"Past Tense, Part II" 2371 1930 Kira Nerys and Miles O'Brien simulated transporter malfunction
1930 2371 Kira Nerys and Miles O'Brien simulated transporter malfunction
2371 1967 Kira Nerys and Miles O'Brien simulated transporter malfunction
1967 2371 Kira Nerys and Miles O'Brien simulated transporter malfunction
2371 2048 Kira Nerys and Miles O'Brien simulated transporter malfunction
2048 2371 Kira Nerys and Miles O'Brien simulated transporter malfunction
2371 2024 Kira Nerys and Miles O'Brien simulated transporter malfunction
2024 2371 Julian Bashir, Jadzia Dax, Kira Nerys, Miles O'Brien, and Benjamin Sisko simulated transporter malfunction
"Visionary" 2371 2371 (five hours later) Miles O'Brien temporal displacement
2371 2371 (five hours before) Miles O'Brien temporal displacement
2371 2371 (five hours later) Miles O'Brien temporal displacement
2371 2371 (five hours before) Miles O'Brien temporal displacement
2371 2371 (five hours later) Miles O'Brien temporal displacement
2371 2371 (five hours before) Miles O'Brien temporal displacement
2371 2371 (five hours later) Miles O'Brien temporal displacement
2371 2371 (five hours before) Miles O'Brien temporal displacement
2371 2371 (five hours later) Miles O'Brien temporal displacement
2371 2371 (five hours before) Miles O'Brien temporal displacement
2371 2371 (three and a half hours later) Miles O'Brien temporal displacement
2371 2371 (three and a half hours before) Miles O'Brien (future version) temporal displacement
"The Visitor" 2372 2372 (few months later) Benjamin Sisko temporal displacement
2372 2373 Benjamin Sisko temporal displacement
2373 2389 Benjamin Sisko temporal displacement
2389 2408 Benjamin Sisko temporal displacement
2408 2422 Benjamin Sisko temporal displacement
2422 2450 Benjamin Sisko temporal displacement
2450 2372 Benjamin Sisko temporal displacement
"Little Green Men" 2372 1947 Quark's Treasure with crew (Nog, Odo, Quark, and Rom) time warp
1947 2372 Quark's Treasure with crew (Nog, Odo, Quark, and Rom) time warp
"Accession" 22nd century 2372 Akorem Laan (aboard his lightship) Prophet ability
2372 22nd century Akorem Laan (aboard his lightship) Prophet ability
"Trials and Tribble-ations" 2373 2268 USS Defiant with crew and Arne Darvin Orb of Time
2268 2373 USS Defiant with crew and Arne Darvin Orb of Time
"Children of Time" 2373 22nd century (alternate) USS Defiant with crew energy barrier
"Wrongs Darker Than Death or Night" 2374 2346 Kira Nerys Orb of Time
2346 2374 Kira Nerys Orb of Time
"Time's Orphan" 2374 21st century Molly O'Brien time portal
21st century (ten years later) 2374 Molly O'Brien time portal
2374 21st century Molly O'Brien time portal
21st century 2374 Molly O'Brien (young version) time portal
"The Sound of Her Voice" 2371 2374 Lisa Cusak's distress call and subsequent transmissions metreon radiation
2374 2371 USS Defiant response transmissions metreon radiation
"Parallax" 2371 2371 a short time before Kathryn Janeway and B'Elanna Torres event horizon of a quantum singularity
"Time and Again" 2371 2371 (about a day before) Kathryn Janeway and Tom Paris subspace fractures
"Eye of the Needle" 2351 2371 Telek R'Mor Micro-wormhole
2371 2351 Telek R'Mor Micro-wormhole
"Death Wish" 2372 Big Bang USS Voyager with crew and Quinn Quinn's power
2372 Big Bang Q Q's power
Big Bang 2372 USS Voyager with crew, Q, and Quinn Q's power
"Future's End" 29th century 2373 Timeship Aeon and Captain Braxton The Aeon's temporal matrix creating a temporal rift
2373 1996 USS Voyager and crew destabilized temporal rift
2373 1967 Timeship Aeon and Captain Braxton destabilized temporal rift
"Future's End, Part II" 29th century 1996 Timeship Aeon and Captain Braxton The Aeon's temporal matrix creating a temporal rift
1996 2373 USS Voyager and crew, Timeship Aeon and Captain Braxton The Aeon's temporal matrix creating a temporal rift
2373 29th century Timeship Aeon and Captain Braxton The Aeon's temporal matrix creating a temporal rift
"Before and After" 2379 2379 (weeks earlier) Kes temporal flux created by a bio-temporal chamber
2379 2379 (weeks earlier) Kes temporal flux created by a bio-temporal chamber
2379 2379 (months earlier) Kes temporal flux created by a bio-temporal chamber
2379 2378 Kes temporal flux created by a bio-temporal chamber
2378 unknown (years earlier) Kes temporal flux created by a bio-temporal chamber
unknown 2374 Kes temporal flux created by a bio-temporal chamber
2374 2373 Kes temporal flux created by a bio-temporal chamber
2373 2371 Kes temporal flux created by a bio-temporal chamber
2371 2369 Kes temporal flux created by a bio-temporal chamber
2369 unknown (months earlier) Kes temporal flux created by a bio-temporal chamber
unknown unknown (months earlier) Kes temporal flux created by a bio-temporal chamber
unknown 2373 Kes temporal flux created by a bio-temporal chamber
"Timeless" 2390 2375 phase calculations and a letter temporal transmitter
"Relativity" 2375 29th century Seven of Nine temporal transporters
29th century 2372 Seven of Nine temporal transporters
29th century 2372 Captain Braxton temporal transporters
2372 2371 Seven of Nine and Captain Braxton temporal transporters
2371 2375 Seven of Nine and Captain Braxton temporal transporters
2375 29th century a different Seven of Nine, Captain Braxton and Kathryn Janeway temporal transporters
29th century 2372 Kathryn Janeway temporal transporters
2372 29th century Kathryn Janeway and another Captain Braxton temporal transporters
29th century 2375 Kathryn Janeway and Seven of Nine temporal transporters
"Fury" 2376 2371 Kes energy surge in USS Voyager's warp core, created by Kes
"Shattered" 2377 late 2372 Chakotay temporal rift
late 2372 2371 Chakotay temporal rift
2371 early 2372 Chakotay temporal rift
early 2372 late 2372 Chakotay temporal rift
late 2372 2371 Chakotay temporal rift
2371 2375 Kathryn Janeway and Chakotay temporal rift
2375 2373 Kathryn Janeway and Chakotay temporal rift
2373 2394 Kathryn Janeway and Chakotay temporal rift
2394 2374 Kathryn Janeway and Chakotay temporal rift
2374 late 2372 Kathryn Janeway and Chakotay temporal rift
late 2372 2373 Kathryn Janeway and Chakotay temporal rift
2373 2375 Kathryn Janeway and Chakotay temporal rift
2375 2371 Kathryn Janeway and Chakotay temporal rift
2371 2377 Kathryn Janeway and Chakotay temporal rift
2377 early 2372 Kathryn Janeway, Chakotay and Tom Paris temporal rift
2371 early 2372 Harry Kim, B'Elanna Torres and Ayala temporal rift
2374 early 2372 Seven of Nine temporal rift
2394 early 2372 Adult Icheb and Adult Naomi Wildman temporal rift
early 2372 2377 Chakotay temporal rift
"Endgame" 2404 2378 The SC-4 and Admiral Kathryn Janeway chrono deflector
"Cold Front" 31st century 2151 Daniels time portal
"Shockwave" 2152 2152 (ten months in the past) Jonathan Archer time portal
2152 31st century Jonathan Archer and Daniels time portal
"Shockwave, Part II" 31st century 2152 Jonathan Archer temporal chamber
"Future Tense" 2152 2152 (few minutes in the past) Charles Tucker III and Malcolm Reed temporal radiation
2152 2152 (few minutes in the past) Charles Tucker III and Malcolm Reed temporal radiation
2152 2152 (few minutes in the past) Jonathan Archer and Malcolm Reed temporal radiation
2152 2152 (few minutes in the past) Jonathan Archer and Malcolm Reed temporal radiation
"Carpenter Street" 2153 2004 Jonathan Archer and T'Pol time portal
2004 2153 Jonathan Archer, T'Pol, Damron, and a Xindi-Reptilian guard time portal
"Azati Prime" 2153 26th century (possible timeline) Jonathan Archer and Daniels time portal
26th century (possible timeline) 2153 Jonathan Archer time portal
"" 2154 2037 Enterprise and crew subspace corridor
"Zero Hour" 2154 2161 Jonathan Archer and Daniels time portal
2161 2154 Jonathan Archer time portal
2154 1944 Enterprise, her crew, and Daniels time portal
"Storm Front" and "Storm Front, Part II" 1944 2154 Enterprise and crew time portal
Star Trek 2387 2233 Narada and crew black hole
2387 2258 Jellyfish and Spock black hole
"What's Past Is Prologue" 2257 Several months later in 2257 USS Discovery and crew mycelial network

Apocrypha Edit

In the novel Ishmael, Captain Spock embarked incognito aboard a Klingon ore transport, refitted with time travel capacity. The ore transport managed to go back to 1867 Earth after an acceleration close to a white dwarf near Starbase 12. The USS Enterprise was modified to follow the ship to 1867, becoming the first instance that a Federation ship utilized intentional and controlled time travel.

In the video game Star Trek: The Next Generation - Future's Past for the Super Nintendo, the computer mentions several temporal near-catastrophes in the 23rd century: the New York incident, the above-mentioned "Ishmael incident," and the "Eyeglass Loop Paradox" referring to what Kirk did in Voyage Home with his glasses.

The Department of Temporal Investigations novels Watching the Clock and Forgotten History go into detail about the principles of time travel, as well as the hows and whys of the various time travel incidents in Star Trek's history. The most significant of these demonstrates how Starfleet became aware that history could change- previously they had assumed that changing history just created an alternate timeline that those who changed history happened to get 'stuck' in-; when the DTI created Timeship One with the intention of deliberately travelling three days into the future, a future version of the ship appeared in their time thirty-two hours before it was due to launch, the crew all dead or dying from an accident that had occurred when they overshot. With this discovery postponing the planned launch, the future Timeship One and its crew disappeared once the time of the original launch had passed, confirming that history could be changed.

External link Edit