Under the  tag I have seen many questions on earth-616. Are there any other versions of earth as well? How do they differ from each other?
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I know that there are at least 3 Marvel Universes:  Marvel Cinematic Universe -    Has all of the main ongoing Marvel movies    (1, 2)  (1, 2, 3)  (1, Age of Ultron) etc    Marvel's Ultimate Universe -    Has the other Marvel movies    (1, 2, 3, Origins: Wolverine, First Class, The Wolverine, Days of Future Past)  (1, 2)  etc       Main comic book continuity This is the big one, it contains         etc     Then there are apparently off-shoot Earths, continuities which deviate from the main continuity (Earth 616). How many Marvel Earths (Universes) are there?   Further Reading:
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After spending some time reading  I was convinced to buy the book.  I've ordered what I think is the  in my local bookstore (yay local) and it seems to relate to the first one or two years of of web content, but I can't be sure.  My question is: "how does the book series line up with the Web comic?"  Does it contain specific episodes/adventures, relate to strips from a specific time-span or is it simply an assortment of episodes?  UPDATE: They are amazing.  It is interplanetary war in the introduction!!!!  Yes!
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The other night just as I was going to bed (10/05/2018 around 12:30 AM), on Free-to-air television in Australia on 7Mate (Channel 63) there was a program called Jabba's Avengers Special where they were talking about the Avengers, The Infinity Stones, Thanos etc.  There was a part where 2 people, a man and a woman (don't know their roles but they weren't actors, might have been part of the production team) were being interviewed about Thanos where the guy said that Thanos was a Mutant so that he was super strong and had super tough skin.  Now I would assume when the guy said Mutant he can't be using the terms that's described the X-Men and other characters with the X-Gene because it was my understanding that because of movie licensing Marvel Studios can't have Mutants (and thus why Quicksilver and Scarlet Witch are Enhanced Humans rather that being Mutants and children of Magneto).  So assuming that the guy is using the more generic form of the word, is Thanos a Mutant among Titans? If so what made him different from other Titans?
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In Superman #11 the cover reads:   Now I know covers have a tendency to be a little... misrepresentative of what is actually contained in the issue, but I've read the issue twice. There doesn't seem to be any secret about it.
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I've found conflicting sources over who initiated the idea of Marvel's Multiverse having numbered universes.  Some say Alan Moore's Captain Britain was the first to use Earth-616, whereas others indicate it was fan-created from Fanzines: with Mark Gruenwald's Omniverse being the frontrunner.  Who is responsible for creating the universe designations? Is there any credible information on their development?
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On the , there is some concern regarding the use of a photograph taken of a comic book. The question is located .  I am actually the person who asked the question and took the photo. I considered asking the question without using the image, but felt that the image would help explain the situation better than I could in words. So, I assumed  and uploaded the two panels to imgur.com.  Some clarification about SE's stance on using such images would be appreciated.
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Is there a map of Earth somewhere that shows the various countries that exist during the 24th century? I know it's called United Earth, but I'd imagine it's still divided up into various countries. The ones I've heard mention of are USA, Canada, and France but what others exist at that time?
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When Superman goes back to visit his home planet (using his ability to travel through time, I guess), is he:    an exceptionally strong and athletic Kryptonian? just an average Kryptonian male? a weakling on account of spending a lifetime in the comparative microgravity of Earth?   A possibly related question: why is Superman so muscular? What kind of weights does he lift to stay in shape?  The answers to  are all about Superman's superpowers on Earth compared with other visitors from Krypton; I'm asking about Kal El without his superpowers.  Clarification: I'm asking about the "classic"  Superman, say late Golden to early Silver Age, roughly 1945-1960. (Yes, I know the concept evolved during those years.) I'm not sure what that would be in terms of "numbered Earths", those came along after my time. I'm pretty sure the Kryptonians of that era had no superpowers in their native milieu, nor would Kal El if he were deported in space-time to his native world.
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I'm reading :  Earth [...] is the third planet from the Sun[...] The Earth's human population is [...]   Then the   The Earth is certainly the most familiar planet [...] Apollo 11 shot of Earth Galileo shot of the Earth and Moon   I think no other planets have this problem. Nobody would say "The Mars is certainly the first planet that humans will travel to", so what's happening here?  So what is the correct way of referring to the planet that i'm on right now? Does it require "THE" or not? How come English-speaking Earthlings keep changing the rules in the middle of a paragraph?
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So I'll start by saying Brie Larson's Carol Danvers is Captain Marvel and we should all call her that.  My question is though is the title diegetic? Can we expect anyone in the movies to call her that?  I don't think anyone was called by their rank in the movie and I can't tell from the uniforms but both Carol Danvers/Vers and Dr. Wendy Lawson/Mar-vell could've been a Captain in the Air Force/Starforce.  Did I miss something about Carol taking on her mentors name or something or is Captain Marvel just what we, the viewers, call the character in the real world? It didn't seem like she needed or wanted a secret identity, she could just go by Carol.
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As shown in various episodes ("Mirror, Mirror," "Phantasms," etc.), other universes exist, oftentimes containing the same characters, albeit in different situations than in the prime universe. I'm curious, though, whether individuals that apparently exist outside of the multiverse, such as members of the Q, would not be duplicated elsewhere. It seems reasonable to me, but I'm not sure.
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There are so many "Why didn't Dr. Strange" questions related to the Thanos fight.   But I wondered, when they fought Thanos and tried to pull off the gauntlet, why didn't Strange just create and close a portal around Thanos' arm? Like in the city fight where that dude's arm was cut?  I guess it all has a reason because Strange saw many different outcomes but still, I really wonder.  PS: i am not asking why Strange didnt use the ring to port back to Earth. I mean specifically why he didnt cut Thanos' arm off.
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At the end of First Class, Xavier is paralysed, and him and Magneto split paths. However at the beginning of Last Stand, it flashes back 20 years, and you see the grown up Xavier and Magneto, friends, talking to a young Jean Gray.  Did Xavier get the use of his legs back and then lose it again?  Or is this just a continuity error?
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Assuming we count Superman's age as the age of Clark Kent in Earth Years, how does his age compare to Bruce Wayne in-universe?  Any answers are preferred to be from the same continuity if possible; but absent that cross-continuity answers are OK if less desirable.
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In the movie, After Earth:      Humans have been away from Earth for over a thousand years living on other planets outside of our solar system. It is mentioned Humanity was under attack by an alien race, but it did not mention terraforming or any particular change of the Earth's ecosystem.    Why did Humans who were not native to Earth appear to be unable to breathe on Earth without technology? I don't remember anyone explaining why humans couldn't breathe there. Was there something I missed or is this a plot hole we were expected to hand-wave away?
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This is a follow up to   Logan  in Mexico, Texas, Oklahoma and other wilderness locations.  Besides the obviously sci-fi elements (cybernetic mutants and their weapons, medical technology, etc, for example, which in the X-Men universe are not necessarily futuristic) what else is there in the appearance of film that would indicate that this is 12 years into the future?  This is a question about  -- the appearance of things, people, and settings, indepedent of the story elements.   I.e. we agree it takes place in the future; the question is about what visual elements there are that were influenced by that story element -- and, for the purpose of this question, that are different than present day real-world things.
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I know in the earliest versions of Superman, his powers weren't from the yellow sun, but that was changed and, in general (at least as I understand it), Superman's powers are because he was native to a world with a red sun and now he's under a yellow sun.  What happens to an Earthling or other native to a yellow sun planet when near a red sun?  And what if the sun is blue?  Or a brown dwarf?  Please note: I'm asking about a red sun, not about living on Krypton.  Okay, that's heavy gravity, but it's not the only planet under a red sun.  (But, still the point about whether yellow sun natives would have super powers would come into play there, wouldn't it?)