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->''"You drop another nuke out of the concave (and heavily armored) bottom of the ship, and detonate it when it gets about 200 feet away. Rinse and repeat until you're in orbit. What could possibly go wrong?"''
-->--''Website/{{Cracked}}'', [[https://www.cracked.com/article_16631_5-retarded-space-travel-ideas-that-might-actually-work.html "5 Idiotic Space Travel Ideas (That Might Actually Work)"]]


* ''Series/StarTrekTheOriginalSeries'' episode "For the World is Hollow and I Have Touched the Sky": features a generation ship, constructed out of a hollowed-out iron asteroid, propelled using "Orion class nuclear pulse engines" in which fission bombs were detonated in shafts. It appeared to have been traveling for about 10,000 years, and had traveled about 30 light years on its own power.

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* ''Series/StarTrekTheOriginalSeries'' episode "For the World is Hollow and I Have Touched the Sky": features a generation ship, constructed out of a hollowed-out iron asteroid, propelled using "Orion class nuclear pulse engines" in which fission bombs were detonated in shafts. It appeared to have been traveling for about 10,000 years, and had traveled about 30 light years on its own power. Unfortunately by the 23rd century one of the tubes is damaged (or the weapons used just plain malfunctioned during a course change) and the ship is on a collision cause with an inhabited planet. As such the Enterprise finds itself fighting to save both planets by correcting the ships course.


* In ''{{Franchise/Halo}}: TalesFromSlipspace'', when the crew of the UNSC ''Nereid'' is stranded deep in space, Commander Coffey makes the suggestion to use the ship's nukes as a means of propulsion, based on early interstellar engines. [[spoiler:However, Major Tanris runs the math and discovers that the yield of their modern 26th century nukes far exceeds that of 22nd century Orion engines, meaning the explosion would actually destroy their entire ship. Coffey's real plan was to MercyKill everyone aboard rather than spend more weeks starving and fighting over dwindling resources.]]

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* In ''{{Franchise/Halo}}: TalesFromSlipspace'', Tales From Slipspace'', when the crew of the UNSC ''Nereid'' is stranded deep in space, Commander Coffey makes the suggestion to use the ship's nukes as a means of propulsion, based on early interstellar engines. [[spoiler:However, Major Tanris runs the math and discovers that the yield of their modern 26th century nukes far exceeds that of 22nd century Orion engines, meaning the explosion would actually destroy their entire ship. Coffey's real plan was to MercyKill everyone aboard rather than spend more weeks starving and fighting over dwindling resources.]]

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* In ''{{Franchise/Halo}}: TalesFromSlipspace'', when the crew of the UNSC ''Nereid'' is stranded deep in space, Commander Coffey makes the suggestion to use the ship's nukes as a means of propulsion, based on early interstellar engines. [[spoiler:However, Major Tanris runs the math and discovers that the yield of their modern 26th century nukes far exceeds that of 22nd century Orion engines, meaning the explosion would actually destroy their entire ship. Coffey's real plan was to MercyKill everyone aboard rather than spend more weeks starving and fighting over dwindling resources.]]


* In the [[https://forums.serebii.net/threads/past-of-the-future-future-of-the-past.663310 "Past of the future, future of the past..."]] ''Franchise/{{Pokemon}}'' fanfic, [[spoiler: [[MassTeleportation Soris Empire]] deploys the "Red Explorer" - an Orion battleship, converted from a partially assembled peaceful Mars exploration vessel and armed with [[NuclearOption many nuclear weapons]] - against the [[OlympusMons Rayquaza]].]] [[spoiler: [[DidYouJustPunchOutTheCthulhu The "Red Explorer" wins]].]]

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* In the [[https://forums.''[[https://forums.serebii.net/threads/past-of-the-future-future-of-the-past.663310 "Past of the future, future of the past..."]] "]]'' ''Franchise/{{Pokemon}}'' fanfic, [[spoiler: [[MassTeleportation Soris Empire]] deploys the "Red Explorer" - an Orion battleship, converted from a partially assembled peaceful Mars exploration vessel and armed with [[NuclearOption many nuclear weapons]] - against the [[OlympusMons Rayquaza]].]] [[spoiler: [[DidYouJustPunchOutTheCthulhu The "Red Explorer" wins]].]]

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* In the [[https://forums.serebii.net/threads/past-of-the-future-future-of-the-past.663310 "Past of the future, future of the past..."]] ''Franchise/{{Pokemon}}'' fanfic, [[spoiler: [[MassTeleportation Soris Empire]] deploys the "Red Explorer" - an Orion battleship, converted from a partially assembled peaceful Mars exploration vessel and armed with [[NuclearOption many nuclear weapons]] - against the [[OlympusMons Rayquaza]].]] [[spoiler: [[DidYouJustPunchOutTheCthulhu The "Red Explorer" wins]].]]


* ''Literature/{{Cepheide}}'' the 1981 anthology by TaisTeng describes a ship with Orion propulsion as one of the most primitive and wasteful methods of interstellar flight, still only achieved by a tiny minority of all intelligent races in the universe. The ship is said to be the last relic of an unknown race exterminated by the dominant [=YiYiki=] (descendants of the humpback whales).

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* ''Literature/{{Cepheide}}'' the 1981 anthology by TaisTeng Creator/TaisTeng describes a ship with Orion propulsion as one of the most primitive and wasteful methods of interstellar flight, still only achieved by a tiny minority of all intelligent races in the universe. The ship is said to be the last relic of an unknown race exterminated by the dominant [=YiYiki=] (descendants of the humpback whales).

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* ''Literature/Aeon14'': In ''Destiny Lost'' and its POVSequel "Know Thy Enemy", an AST fleet starts detonating megaton-range hydrogen bombs against their DeflectorShields to try and escape a black hole's gravity well.


* In one ''Literature/{{Bolo}}'' story, a Bolo is stranded in space after its transport is destroyed by UnfriendlyFire, which also significantly damaged the tank itself. To get into action, the Bolo uses its "Hellrails" (Hellbores tasked specifically with shooting down spacecraft) to create what are effectively small-scale nuclear explosions to nudge it to where it needs to go.

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* In one ''Literature/{{Bolo}}'' story, a Bolo is stranded in space after its transport is accidentally destroyed by UnfriendlyFire, friendly fire that was targeting an invasion fleet which also significantly damaged the tank itself. To get into action, the Bolo uses its "Hellrails" Hellrails (Hellbores tasked specifically with shooting down spacecraft) to create what are effectively small-scale nuclear explosions to nudge it to where it needs to go.

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* In one ''Literature/{{Bolo}}'' story, a Bolo is stranded in space after its transport is destroyed by UnfriendlyFire, which also significantly damaged the tank itself. To get into action, the Bolo uses its "Hellrails" (Hellbores tasked specifically with shooting down spacecraft) to create what are effectively small-scale nuclear explosions to nudge it to where it needs to go.


* [[http://en.wikipedia.org/wiki/Project_Orion_(nuclear_propulsion) Project Orion,]] the TropeNamer, which actually happened -- although they never went full-scale for obvious reasons. The project eventually got canceled by an international treaty banning nuclear weapons in space. [[note]]Peaceful uses of nuclear explosions, such as for deflecting asteroids, are not ruled out [[/note]].
* [[http://en.wikipedia.org/wiki/Project_Daedalus Project Daedalus,]] which was a conceptual design thought up by the British Interplanetary Society, which wasn't worked upon since it's not yet possible. Instead of bombs, it would use a less hamfisted approach, with lasers being focused on small deuterium-tritium pellets to create small fusion detonations - a process which is indeed being studied as a means of peacefully harnessing fusion energy - but the basic idea of using pulsed explosions remains the same.
* [[http://en.wikipedia.org/wiki/Project_Longshot Project Longshot,]] which was basically Project Daedalus if it were (A) allowed to decelerate on the way in to Alpha Centauri, and (B) more realistic about the difficulties of using engine power to run its own electrical systems.
* [[http://en.wikipedia.org/wiki/Operation_Plumbbob#The_first_nuclear-propelled_manmade_object_in_space Allegedly,]] the unexpected firing of a 900kg steel lid from the top of a nuclear test chamber into the sky at 60km/s was inspiration for some of the Orion design. If it survived its flight it would have been the first (and only) nuclear launched man made object in space. It probably burnt up before it exited the atmosphere though. Experimental designer Dr. Robert R. Brownlee described the best estimate of the cover's speed from the photographic evidence as [[SophisticatedAsHell "going like a bat out of hell!"]]

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* [[http://en.wikipedia.org/wiki/Project_Orion_(nuclear_propulsion) Project Orion,]] Orion]], the TropeNamer, which actually happened -- although they never went full-scale for obvious reasons. The project eventually got canceled by an international treaty banning nuclear weapons in space. [[note]]Peaceful uses of nuclear explosions, such as for deflecting asteroids, are not ruled out [[/note]].
out.[[/note]]
* [[http://en.wikipedia.org/wiki/Project_Daedalus Project Daedalus,]] Daedalus]], which was a conceptual design thought up by the British Interplanetary Society, which wasn't worked upon since it's not yet possible. Instead of bombs, it would use a less hamfisted approach, with lasers being focused on small deuterium-tritium pellets to create small fusion detonations - a process which is indeed being studied as a means of peacefully harnessing fusion energy - but the basic idea of using pulsed explosions remains the same.
* [[http://en.wikipedia.org/wiki/Project_Longshot Project Longshot,]] Longshot]], which was basically Project Daedalus if it were (A) allowed to decelerate on the way in to Alpha Centauri, and (B) more realistic about the difficulties of using engine power to run its own electrical systems.
* [[http://en.wikipedia.org/wiki/Operation_Plumbbob#The_first_nuclear-propelled_manmade_object_in_space Allegedly,]] org/wiki/Operation_Plumbbob#Propulsion_of_steel_plate_cap Allegedly]], the unexpected firing of a 900kg steel lid from the top of a nuclear test chamber into the sky at 60km/s was inspiration for some of the Orion design. If it survived its flight it would have been the first (and only) nuclear launched man made object in space. It probably burnt up before it exited the atmosphere though. Experimental designer Dr. Robert R. Brownlee described the best estimate of the cover's speed from the photographic evidence as [[SophisticatedAsHell "going like a bat out of hell!"]]


A basic Orion Drive is composed of a CoolShip, a large armor plate, and enough high yield weapons to set it in motion. They don't necessarily have to be ''nuclear,'' but they need to have the equivalent explosive power. A common variant is to have the explosive material be smaller pellets of frozen deuterium-tritium mix, which would then be induced into nuclear fusion by a laser; this is essentially an H-bomb without having to use an A-bomb to set it off.

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A basic Orion Drive is composed of a CoolShip, a large armor plate, and enough high yield weapons to set it in motion. They don't necessarily have to be ''nuclear,'' but they need to have the equivalent explosive power. A common variant is to have the explosive material be smaller pellets of frozen deuterium-tritium mix, which would then be induced into nuclear fusion by a laser; this is essentially an H-bomb without having to use an A-bomb to set it off. \n Note that such inertial confinement fusion propulsion systems are not properly termed Orion drives.


* In the ''Literature/GreatShip'' universe by RobertReed, the Orion Drive (referred to as a bomb drive) is a common form of propulsion where anti-matter or fusion rockets are too expensive or delicate. One of the main characters of ''Marrow'', Pamir, was the captain of a liner equipped with an ancient bomb-drive.

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* In the ''Literature/GreatShip'' universe by RobertReed, Creator/RobertReed, the Orion Drive (referred to as a bomb drive) is a common form of propulsion where anti-matter or fusion rockets are too expensive or delicate. One of the main characters of ''Marrow'', Pamir, was the captain of a liner equipped with an ancient bomb-drive.


* ''ManifoldSpace'', also by Creator/StephenBaxter, has the main character piloting an Orion craft to a [[PortalNetwork large blue ring]] situated just outside the Solar system.

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* ''ManifoldSpace'', ''Literature/ManifoldSpace'', also by Creator/StephenBaxter, has the main character piloting an Orion craft to a [[PortalNetwork large blue ring]] situated just outside the Solar system.

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** In the base game it was possible to use large amounts of decouplers as an insanely powerful propulsion system.

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