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[–] 207 points 7 months ago (9 children)

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

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  • [–] 93 points 7 months ago (3 children)

    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.

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  • [–] 42 points 7 months ago (1 child)

    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.

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  • [–] 32 points 7 months 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.

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  • [–] 13 points 7 months 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.

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  • [–] 88 points 7 months ago (5 children)

    How did they get it to pose next to earth for this photo?

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  • [–] 33 points 7 months ago (1 child)

    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.

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  • [–] 37 points 7 months ago (8 children)

    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.

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  • [–] 64 points 7 months ago (7 children)

    Or they just approach from this angle and go "Ah, nothing here" and move on

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  • [–] 9 points 7 months ago (4 children)
  • [–] 37 points 7 months ago (4 children)

    Here, go nuts:

    https://calandiel.itch.io/gleba

    Best freely available, scientifically based planet generator I've been able to find.

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    [–] 36 points 7 months ago (1 child)

    ...because Slartibartfast didn't hand design them like he did for earth?

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  • [–] 71 points 7 months ago

    * slaps sphere *

    "You can fit so much Perlin noise on this baby."

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  • [–] 31 points 7 months ago (1 child)

    Are we landmass shaming now?

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  • [–] 3 points 7 months 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.

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  • [–] 53 points 7 months ago (8 children)

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

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  • [–] 36 points 7 months ago* (last edited 7 months ago) (7 children)

    Whenever I see an update on these sort of articles, the planet always ends up being a tide-locked hell-scape full of toxic chemicals.

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  • [–] 34 points 7 months ago (3 children)
  • [–] 16 points 7 months ago (2 children)

    Slightly unrelated but I got a solid chuckle out of the different modes they added in the drop down on the XKCD website under teh comic, Space Opera mode is my favorite.

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  • [–] 17 points 7 months ago (2 children)

    So basically what billionaires are trying to turn the world into? /s

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  • [–] 23 points 7 months ago (2 children)

    Don't worry. If us humans showed up on Kepler-452b tomorrow and it had a breathable atmosphere, those lakes would probably be gone in a few hundred years.

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  • [–] 42 points 7 months ago* (6 children)

    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".

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  • [–] 17 points 7 months ago (3 children)

    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?

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  • [–] 5 points 7 months ago* (last edited 7 months 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".

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  • [–] 19 points 7 months 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.

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  • [–] 18 points 7 months ago

    As someone who used mapmaking software for decades I agree they all look randomly generated.

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  • [+] 18 points 7 months ago (1 child)
  • [–] 14 points 7 months 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.

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  • [–] 17 points 7 months ago (2 children)

    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.

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  • [–] 16 points 7 months ago (3 children)

    That's where they land in Raised By Wolves, right?

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  • [–] 12 points 7 months ago (2 children)

    That show had so much potential as true high sci-fi and it was completely wasted

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  • [–] 14 points 7 months ago (2 children)
  • [–] 14 points 7 months ago (6 children)

    So thats where rimworld got the shitty planet generation from. Seriously, I want big contiguous oceans. Not like I can use the vast majority of the planet anyway.

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  • [–] 3 points 7 months ago (3 children)

    Maybe if they make a seafaring DLC (though that is kind of a step back after doing literal space ships).

    Unless I'm mistaken, you can really do anything in the water tiles in Rimworld

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  • [–] 1 point 7 months ago (2 children)

    Yeah, I want it purely for aesthetics. I like generating 100% of the planet, and sending colonies to far-flung places via dev mode instant travel to settle in isolation, so I spend a decent amount of time looking at the world map. It just bothers me when it’s mostly land. It’s ugly, imo, and you get fewer interesting land/climate combos, even with expanded biomes. Also one of my mods adds things washing up on the beach, like organs, so I'm a big fan of ocean-adjacent tiles.

    Honestly I haven't gotten the new DLC, and probably wont, so I don’t really know anything about the space stuff. I have way too much time and energy invested in my collection of mods and don't have any interest in doing it again (I manage them manually because I don't use steam, so updating/replacing a thousand mods is a big project)

    I’ve been playing whiskerwood on and off, its in early access and runs for shit on my crap windows computer, but it’s all islands and it seems they'll be adding more to water navigation (last patch I installed added ferries and boat docks, and that was a few months ago). I enjoy that sort of thing too, but I don't think rimworld really needs it.

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  • [–] 1 point 7 months ago (1 child)

    Did you not need to update your mods for 1.6 anyway?

    The new DLC is fucking awesome. I think most mods at this point are compatible (or made redundant).

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  • [–] 1 point 6 months ago

    I don't have 1.6, so no.

    I’m sure most of the mods I use would be either available or obsolete, but I’m not interested in doing all the work it would take to upgrade everything, and I don’t really feel like I’m missing out.

    Maybe someday I’ll make a whole separate setup for 1.6 and have both, but no time soon.

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  • [–] 10 points 7 months ago (1 child)

    It looks so shit cause they've already nuked themselves to planetary death. And because of climate change and rising sea level. Also ecosystem degradation and subsequent soil erosion. I've heard you need to prevent these to keep Earth beautiful. Just for the aesthetics. Think about the astronauts, what if they had to look at an ugly Earth?

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  • [–] 9 points 7 months ago (2 children)

    Since it's just perlin noise anyway... They should use gag landmasses for fun. See if anyone recognises Middle Earth or the Seven Kingdoms.

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  • [–] 8 points 7 months ago (1 child)

    Another earth, but it is all australia

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  • [–] 7 points 7 months ago (5 children)

    Because one of them (Earth) is based on reality, and the other is a poorly done conceptual render because no human actually knows the shape of the landmasses on that planet on account of having never been there.

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  • [–] 5 points 7 months ago (4 children)

    Have they considered zooming their telescope in enough until they can see for themselves firsthand?

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  • [–] 4 points 7 months ago (2 children)

    I know you're probably joking but even the best telescopes can only directly image a planet that's like 10 times the mass of Jupiter and even then it's only like two pixels.

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  • [–] 1 point 7 months ago* (1 child)

    Makes me wonder what a telescope the size of a solar system could see. How large of the telescope do you think it would take to be able to get a clear image of this planet?

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  • [–] 1 point 7 months ago

    Honestly I'm not even sure it's possible at that distance. Planets reflect very little light compared to stars, and that already minuscule amount of light gets scattered across an insanely huge area due to the inverse square law. So that tiny amount of light gets spread over an insanely huge area (light years in size).

    I feel like to get a clear picture your telescope would have to be light years across in size to get a clear image with fine details in it. The light is just too spread out to get a clear picture of it with anything you can build at a human scale.

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  • [–] 3 points 7 months ago

    The hard part is that the stars create so much glare and planets are so small and faint that it's really REALLY hard to zoom in on them. Even with very powerful telescopes. It's probably straight up impossible actually. Like you can see them and get an idea of what they're made of (light spectrum analysis) but you're not going to be able to make out fine details like what the landmasses look like.

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  • [–] 6 points 7 months ago

    Bro that's a PRIME sailing planet if I've ever seen on.

    Earths oceans shores are largely extremely boring linear beaches. Especially along the Atlantic.

    This plant would be prime for small cheap hobby costal sailing

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