• melfie@lemmy.zip
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    9 hours ago

    They’d probably like to come colonize our planet, but with 2x the gravity of Earth, I bet it’s hard to build a rocket that can actually get them into space, much less travel 1800 light years.

  • cartoon meme dog@lemmy.zip
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    14 hours ago

    Fermi paradox solution: aliens approach from a direction where the first part they see is the Philippines and Indonesia, and just say “nah I’m not learning all those names of islands”, and leave.

  • Aceticon@lemmy.dbzer0.com
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    16 hours ago

    Because the computer-generated images that symbolize said other planets are generally done with some shitty-shit stupid noise algorithm to generate the surface rather than anything decent (well, at least it’s not uniform noise), whilst the ones for planet Earth just use existing map data for the Earth surface.

    As it so happens I’ve been working on a game that has planets, so here’s an example generated with better algorithms:

    example made up planet

    PS: also note that for game purposes, the athmosphere is unrealistically thick as a proportion of planetary radius, purelly because it looks better. A lot of choices in game making are mainly artistic freedom which at first people with a Science or Engineering background tend to shy away from “because it’s not how things are”.

    • Venat0r@lemmy.world
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      13 hours ago

      I think it’s also that we choose the most photogenic angle for earth, if you pick a random angle of earth it sometimes doesn’t look as good.

      e.g. 638

      do you have an algorithm for picking a photogenic angle for your game?

      • Aceticon@lemmy.dbzer0.com
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        6 hours ago

        do you have an algorithm for picking a photogenic angle for your game?

        Nah, the planets are just shown as 3D objects in the game.

        The little icons as the one I linked were made by a special game mode for development which I call the PlanetPhotoStudio that just lets me manually rotate the planet 3D object and take a snapshot. Since the planet surfaces are pre-generated using an external program (“Grand Designer”, highly recommended) and only some results are chosen, it’s fine to also make those icons during development time.

        It’s actually less hassle to create a “photo studio” (especially since most of the work for it is also used in the main game) and do it manually for each planet like that than to try and come up with an algorithm for “how photogenic a 2D view of a planet looks”.

    • AppleTea@lemmy.zip
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      10 hours ago

      Documentaries and science communication in general has always been waaaay too fucking lax on properly disclosing artists’ renderings. Every field suffers from it, but I have to say astrophysics and astronomy are the absolute worst about it.

  • ExtremeUnicorn@feddit.org
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    17 hours ago

    Am I the only one around here who doesn’t think it looks like shit?

    Geoscentific and ecological implications aside, they have a huge ass continent with multiple giant lakes and small peninsulas all around. With a comparable vegetation to earth, this would look amazing in person, I believe.

    • prole@lemmy.blahaj.zone
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      15 hours ago

      Yeah, very geo-centric view. It just looks different than literally the only planet humanity has ever known

    • rumba@lemmy.zip
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      14 hours ago

      What I’d actually like to know is how it was chosen. At that distance, we can’t see anything from position and luminosity, and even the luminosity is rough to bake out of other bias. We’re better at telling that there’s a moon. Is this an artists rendition? It is a reasonable calculation due to age and plate tectonics?

      I don’t hate it, but if it’s just art for the sake of art, why not go earth-like?

    • Gormadt@lemmy.blahaj.zone
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      19 hours ago

      Kepler-452b was having a private conversation with Australia when the photographer snuck up and got the candid photo.

      Unfortunately Kepler-452b was embarrassed by having the intimate moment interrupted and left in a hurry.

      Though their conversation was pleasant, the photographer ruined the mood and numbers were not exchanged.

    • BarneyPiccolo@lemmy.today
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      17 hours ago

      We’ve always done that. Everybody knows our hemisphere is prettier and sexier than theirs. We’ve got the hottest hemisphere on the planet, and that includes whether you break it up North/South, or East/West. We own it, baby.

  • BarneyPiccolo@lemmy.today
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    17 hours ago

    They got a lot more land on that planet. The people who live there don’t appreciate what they’ve got like we will, so we deserve it more. Let’s go kill them and take it from them.

  • captainlezbian@lemmy.world
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    14 hours ago

    I wonder if it has plate tectonics. A big part of why our continents look like this is them. That said, yeah that’s a lot of mid continent seas/great lakes

    • wolframhydroxide@sh.itjust.works
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      5 hours ago

      If you didn’t have plate tectonics, you’d have a lot of problems with the atmosphere, and there’s a decent chance that life wouldn’t evolve, as the energy differentials generated by tectonic activity are those which life hangs onto, from nutrients, to oxidation, to geothermal heat.

  • NigelFrobisher@aussie.zone
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    22 hours ago

    Earth 2 exists, except it’s twice the size of Earth and could be a scorched wasteland for all we know.

  • Eiri@lemmy.ca
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    1 day ago

    There’s no way in hell we have the resolution to see continents in another star system.

    • REDACTED@infosec.pub
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      1 day ago

      These are always illustrations based on whatever data we could gather. We almost never “see” the planets themselves.

    • themeatbridge@lemmy.world
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      1 day ago

      Considering we only know it’s there because it slightly dims the light from its star as it crosses during its orbit, you would be correct. At that distance, we would never see light bouncing off the actual planet. Even the star is basically a single pixel. We can estimate its size and orbit based on how quickly it crosses in front of the star and how much the light dims, and using those two numbers we can estimate its distance from Kepler 452.

      • PancakesCantKillMe@lemmy.world
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        1 day ago

        I thought they could also see atmospheric composition as it passes in front of the star, no? Having that info and the data you’ve just mentioned they postulate if it’s habitable or not. Obviously not seeing any detail at all about land mass shapes, but perhaps composition? I’m not a spaceologist, so I’m only musing.

        • grue@lemmy.world
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          1 day ago

          Yeah, but it’s still just a single pixel of light from the star. It just changes color slightly when the planet passes in front of it and the atmosphere gases absorb certain characteristic wavelengths.

      • wraekscadu@vargar.org
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        1 day ago

        We can build a telescope to see this by the way. The lens being the gravitational warping of spacetime by the sun. We go waaaay past the orbit of Pluto (I forgot the exact distance) and send probes there. We can have quite nice pictures of planets up to pretty nice distances.

        • rooroo@feddit.org
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          23 hours ago

          Easy trip to make; it took the voyagers only about 40 years to pass Pluto?

            • FundMECFS@piefed.zip
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              9 hours ago

              FOCAL would be able to observe only objects that are right behind the Sun from its point of view, which means that for every observed object a new telescope would have to be made.[3]: 33 [5]

              Ah….

              • FundMECFS@piefed.zip
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                8 hours ago

                Thinking about it this isn’t necessarily true in that moving the FOCAL relatively little could yield new things to observe (even microarcseconds). So you wouldn’t need a new FOCAL to measure each new thing. However each FOCAL would be measuring a miniscule bit of space over its lifetime. Which means for each distinct object that isn’t basically a neighbour in angular terms to a FOCAL sent you’d need a new FOCAL probably. Unless our long term energy generation/harvesting and propulsion in deep space significantly improves technology wise.

    • Quibblekrust
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      19 hours ago

      Soon, though, using gravitational lensing of the sun. Sometime around 2035 maybe.

    • saltesc@lemmy.world
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      1 day ago

      lol. All those flyby probes we’ve sent to other planets in the system and we could’ve just pointed our interstellar telescope instead and looked for puddles.