Editing 673: The Sun

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The {{w|sun}}'s energy comes from {{w|nuclear fusion}} reactions among the extremely hot, dense hydrogen nuclei in its core. The idea of the sun's fusion failing is rather ridiculous from a scientific perspective, because the fusion reactions are well understood and the sun has enough hydrogen to fuel it for about 5 billion more years. Even if the sun's hydrogen was getting low, it would {{w|Star#Post–main sequence|start fusing helium}} and begin expanding into a {{w|red giant}}. This would then make the Earth uninhabitable. In other words, if the sun stopped fusing, we wouldn't have to worry about less sunlight, we would have to worry about more.  
 
The {{w|sun}}'s energy comes from {{w|nuclear fusion}} reactions among the extremely hot, dense hydrogen nuclei in its core. The idea of the sun's fusion failing is rather ridiculous from a scientific perspective, because the fusion reactions are well understood and the sun has enough hydrogen to fuel it for about 5 billion more years. Even if the sun's hydrogen was getting low, it would {{w|Star#Post–main sequence|start fusing helium}} and begin expanding into a {{w|red giant}}. This would then make the Earth uninhabitable. In other words, if the sun stopped fusing, we wouldn't have to worry about less sunlight, we would have to worry about more.  
  
In any case, it appears to be failing and the solution is to send a team of astronauts to the sun to restart the fusion. The team leader is motivated by concern that if the sun's fusion stops, there will be no more light, and so the earth will be in perpetual darkness.
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In any case, it appears to be failing and the solution is to send a team of astronauts to the sun to restart the fusion (which is analogous to sending an {{w|ant}} to the {{w|US Senate}} to break a {{w|Government shutdowns in the United States|budget deadlock}}). The team leader is motivated by concern that if the sun's fusion stops, there will be no more light, and so the earth will be in perpetual darkness.
  
 
The poster in the final panel gives the movies two taglines, both puns. {{w|Daylight saving time}} (DST) refers both to the policy of changing clocks and to the scenario in this movie in which it is time for the team to literally save the sun's daylight from being extinguished. "Never fall back" is an additional word play on the {{w|mnemonic}} used (in the States at least) to remember the direction to change clocks. The mnemonic, {{w|Spring forward, fall back#Terminology|"spring forward, fall back"}} indicates that in the springtime, clocks get set ahead by an hour, while in fall the clocks are set backwards an hour. The phrase "fall back", however, can also mean to retreat from a battle.
 
The poster in the final panel gives the movies two taglines, both puns. {{w|Daylight saving time}} (DST) refers both to the policy of changing clocks and to the scenario in this movie in which it is time for the team to literally save the sun's daylight from being extinguished. "Never fall back" is an additional word play on the {{w|mnemonic}} used (in the States at least) to remember the direction to change clocks. The mnemonic, {{w|Spring forward, fall back#Terminology|"spring forward, fall back"}} indicates that in the springtime, clocks get set ahead by an hour, while in fall the clocks are set backwards an hour. The phrase "fall back", however, can also mean to retreat from a battle.

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