Itís easy to forget that even a star can die. [[WeAreAsMayflies They are]] incredibly [[TimeAbyss ancient]] by human standards, and their light takes a long time to fade once theyíre gone. Faced with the [[BrokenAngel infinite tragedy]] of a [[UniquenessValue starís death]], multiplied by the ''[[TheStarsAreGoingOut billions]]'' that have already passed away, the concept becomes incomprehensible in its vast scale.

Well, at least it won't happen to ''our'' sun any time soon... [[TemptingFate right?]]

Either through natural causes or galactic vandals who go around StarKilling [[ForTheEvulz for fun]] and profit, the local star is set to die; this usually involves YouFailPhysicsForever even ''with'' liberal uses of {{Phlebotinum}}. [[labelnote:(Science!)]]Most people have no conception of how vast a sun is, nor what happens during a star's life as a main-sequence star. Our sun is 30% brighter now than when the Earth formed, and some time in the next 0.5-1.1 billion years it will grow bright enough that the Earth will become uninhabitable in its current orbit. Said orbit, however, is projected to change, making Earth gradually veer ''further'' from the sun, allowing it to stay in the habitable zone for more time than originally predicted. In either case, our sun has billions of years left before it leaves the main sequence (and it's not quite massive enough to ever go nova).[[/labelnote]] You can imagine the desperation a planetary civilization will feel when it's ''their'' turn to see their sun die. Cue an attempt at SolarCPR. A [[SufficientlyAdvancedAlien sufficiently advanced]] civilization may develop a MagicAntidote or solar-scale WorldHealingWave that can stop this from happening (or at least discover a group of aliens who do).

A civilization facing the natural death of their sun may well use this antidote as the ultimate rejuvenating skin cream to give their sun a few extra billion years of life. Typically, they "kick start Helium fusion", though they may do something much more wonky like reverse the flow of time. Alternately, they might give a gas giant planet or nebula the breath of life and move there.

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!Examples:

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[[folder: Advertising ]]
* Breakfast-cereal ads have depicted the Sun eating a bowl of their brand to give it the energy to rise in the morning.
** Jimmy Dean sausage uses this as well for its line of frozen breakfast sandwiches.
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[[folder: Anime and Manga ]]
* {{Exaggerated}} in ''Anime/PuellaMagiMadokaMagica'', in which [[spoiler:the Kyubeys are trying to reverse the entropy of ''the entire universe'', by what is essentially [[PoweredByAForsakenChild making a girl go supernova]].]]
* At least two different versions of ''Anime/AstroBoy'' end with the title robot making a HeroicSacrifice in order to do this. At the end of the 1960s anime he flies a device into the sun to stop it from going nova, though he was later brought back to life in three different continuation manga by three different aliens (and one was later retconned to bring it in line with the manga continuity where he never flew into the sun, but that's neither here nor there). In ''VideoGame/AstroBoyOmegaFactor'' he flies a piece of scrap containing his girlfriend's CPU in to deactivate the remains of the game's final boss before the radioactive alien alloy he's made of starts a deadly chain reaction.
* At the end of ''Anime/TransformersEnergon'', Primus uses the Super Energon to recreate the sun of Alpha Q's solar system.
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[[folder: Comic Books ]]
* In ''ComicBook/AllStarSuperman:'' [[spoiler:Superman]] dies fixing the sun that had been turned red/blue.
* In ''GreenLantern'', Blue Lanterns can rejuvenate dying stars with the Hope of those on a nearby planet, the process turns the star blue.
** After Hal destroys the GreenLantern corps, the Sun-Eater was killing Earth's sun in ''TheFinalNight'', and he does a HeroicSacrifice that saves it and restores the damage. In the process, it shone green for a day.
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[[folder: Film ]]
* This is the plot of ''Film/{{Sunshine}}'', using a type of bomb to restart Earth's dying sun.
** Or rather, in an attempt to disrupt a [[AllThereInTheManual barely-understood sub-atomic particle that is putting a dampener on the fusion reaction therein]].
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[[folder: Literature ]]
* This is the major plot of Creator/GeneWolfe's ''Literature/BookOfTheNewSun''. TheHero goes on an epic journey of self discovery and meets some benevolent aliens with the power to kickstart the sun, but he has to prove himself, and by extension everyone else, worth of the gift.
* The titular device in ''The Neutronium Alchemist'', the second book of ''Literature/TheNightsDawnTrilogy'' by PeterFHamilton is capable of turning gas planets into neutron stars.
* In ''Wolfsbane'' by Creator/FrederikPohl and C. M. Kornbluth, Earth's moon is turned into an artificial sun to keep the Earth livable since it was stolen from the solar system by aliens. The moon needs to be relighted periodically.
* Creator/ArthurCClarke:
** In ''[[TheSpaceOdysseySeries 2010]]'', the alien monolith turns Jupiter into a star, which gets the name Lucifer.
** In ''The Sands of Mars'', Mars's moon Phobos is turned into an artificial star to make Mars more livable for humans.
* In ''Phoenix'' by Creator/ClarkAshtonSmith the sun is resurrected with a bomb that ignites the elements.
* This trope triggered the asking of Creator/IsaacAsimov's ''[[http://www.multivax.com/last_question.html The Last Question]]''.
* Unusual example in ''[[Literature/{{Narnia}} The Voyage of the Dawn Treader]]'', which features a faded star being made to age backwards until it is once more young again to shine. Unusual, because in Narnia's world, stars are angel-like ''people'' and the 'CPR' consists of the star eating fire-berries that grow in the valleys of the Sun, brought to him by birds.
* In the ''Series/StarTrekTheNextGeneration Q Continuum'' novel trilogy, the T'Kon Empire spent roughly a century or more building a giant transporter array that would teleport their old dying sun out of their solar system and immediately replace it with a younger one. Unfortunately, an [[BigBad evil entity]] called '''[[SufficientlyAdvancedAlien 0]]''' spent decades toying with them for his own amusement, creating conflict among the T'Kon to interfere with their project. When it looked like the T'Kon were about to pass his "test" and succeed despite the obstacles he'd placed, '''0''' caused their sun to go supernova prematurely [[SoreLoser out of spite]].
* Implied in ''Discworld/{{Hogfather}}'', where it's said that if the Hogfather (Discworld's answer to SantaClaus, who in this case is actually a minor god who used to be associated with more... primal midwinter celebrations) isn't saved, the sun won't rise on Hogswatch Day. As it turns out, [[spoiler: Death meant that instead, "[[foldercontrol]]

[[folder: A mere ball of glowing gas would have illuminated the world ]]
". Or in other words, humanity's sense of wonder and imagination would be snuffed out.]]
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[[folder: Live Action TV ]]
* ''Series/StarTrekTheNextGeneration'' episode [[http://en.wikipedia.org/wiki/Half_a_Life_(TNG_episode) Half a Life]] a planet's sun is going to go supernova in a few years. The one scientist they have whose work has come closest to fixing the problem is required by custom and law to commit suicide at age 60, just a few days away. He refuses, and his planet refuses to use his research because he's a traitor to their way of life (their deeply held commitment to this way of life is also why they don't just evacuate their home planet instead of trying to fix the star). Oddly, a test run on a similar star shows it getting ''larger'' as it "heals" and brightens, which is the opposite of what would actually happen.
* In the ''Series/StarTrekDeepSpaceNine'' episode "Second Sight", they used protomatter to reignite Epsilon 119.
* In ''Series/DoctorWho'', Earth's sun is held back from expanding into a red giant for five billion years, until the funds ran out.
** [[ApocalypseWow At which point they sell tickets to people who want to watch]] TheEndOfTheWorldAsWeKnowIt
** And when [[spoiler: the explosion of the [=TARDIS=]]] causes every star in the universe to go nova, Earth survives because a ''replacement'' sun ([[spoiler: the time-frozen exploding [=TARDIS=]]]) provides a substitute until the damage can be undone.
* Variation in ''Series/StargateSG1'' "Red Sky" when a sun is tainted by heavy metals accidentally introduced to it by the passage of a Stargate wormhole, and the team have to reverse the process by adding even heavier elements to bind the first lot. Needless to say, the usual scale problems are very obvious here.
* One of the four TV movies that made up "season 1" of ''{{Lexx}}'', entitled ''Supernova'', featured the ancient, and at that point uninhabited, home planet of the Brunnen-G, in a system of binary suns. A huge automated "stabilizing" device on the planet kept the mutual orbit of the two suns stable, and when it is shut down, the orbit decays and the two stars collide with a cataclysmic explosion.
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[[folder: Mythology ]]
* Some cultures have believed, or [[{{Mayincatec}} are notorious for having believed]], that periodic HumanSacrifice was necessary to invoke this trope.
* In Slavic mythology a dragon stole (or consumed) the Sun and plunged the world into darkness and cold for thirty three years. It took the alliance of mean and good gods to eventually defeat it and restore the Sun in its rightful place.
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[[folder: Tabletop Games ]]
* At the height of their empire, the Eldar of ''TabletopGame/{{Warhammer 40000}}'' were not just able to perform solar CPR, they could birth new stars.
* During the ''[[{{Mystara}} Wrath of the Immortals]]'' StoryArc, the player characters have the opportunity to help end the Week Of No Magic that afflicts the world. One result of their success is that it revives the internal sun of the Hollow World, which had shut down in the absence of magic.
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[[folder: Video Games ]]
* In ''VideoGame/MassEffect2'', recruiting Tali has her investigating a sun which is dying too quickly. Unfortunately, this became an example of WhatHappenedToTheMouse and was never brought up in ''VideoGame/MassEffect3'' at all.
* In the end of ''[[OsuTatakaeOuendan Moero! Nekketsu Rythm Damashii! Osu! Tatakae! Ouendan! 2]]'' [[spoiler:the sun dies, and the two rival cheer squads act together to raise everyone's spirit level enough to resurrect it.]]
* The first level of ''VideoGame/SuperMarioGalaxy'' involves rescuing one of the Grand Stars stolen by [[BigBad Bowser]] by turning off a machine that is slowly sucking out its power.
* The very first ''SpaceQuest'' starts off with Roger Wilco working on a science ship that is carrying one of these devices. The problem is, the device can also be used to cause a star to go nova, which is what the [[SpacePirates Sariens]] try to do after boarding the ship and killing everyone on it (except Roger who was sleeping in a broom closet).
* In the fangame ''VideoGame/FinalFantasyEndlessNova'' the sun is misshapen. It turns out that the Specran race has been using a 100-year cycle of powerful magic to prevent the sun from turning into a black hole, dooming the solar system (and possibly the universe). Of course, the game starts when this cycle is about to be disrupted.
* A star going nova is a random event in the ''VideoGame/MasterOfOrion'' series. The player can prevent it from happening by diverting enough research. Upon succeeding, a message appears about scientists developing a device to "rejuvenate" the star's core.
* One of the major conflicts in the ''[[VideoGame/CielNosurge Surge Concerto]]'' series is how to deal with Bezel, the dying sun of the planet the games take place on. The Save Bezel Project is the faction that wants to invoke this trope.
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[[folder: Western Animation ]]
* An entire episode of ''CourageTheCowardlyDog'' is based around this. The sun is repaired by changing a lightbulb.
* ''SpartakusAndTheSunBeneathTheSea'' was an old French animated series in which the heroes come from a civilization who live underground AfterTheEnd, but are forced to journey to the surface world for help after their artificial sun Tehra starts dying.
* ''InvaderZim'' had an episode based on the "[[ExactlyWhatItSaysOnTheTin Planet Jackers]]," who ''steal planets'' to drop into the sun their home planet orbits, in hopes that their burning will continue to fuel the sun. We didn't get to see if it actually works, but presumably it does since there's evidence that they'd been doing it for a while.
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