>potentially habitable>8.6 times the mass of Earthlol it's probably more like neptune.also co2 and methane do not need life to produce them.
>>16364044>Proxima Centauri, the closest star to our own, has a planet>it has no name other than "Proxima Centauri Cb">this is literally the first exoplanet body we will ever visit
https://iopscience.iop.org/article/10.3847/2041-8213/ad2616/pdf
>>16364044If you stand on the surface your effective weight will be around 1500 lbs. Maybe not quite enough to crush your bones but you probably won't breathe very well and will end up dying in considerable pain, assuming the planet has a surface at all. Ain't no place like home.
>>16364059Should call it Principium or something, to denote it's significance as our first step into the galaxy
>>16364067Nice. Just don't call it "Pandora".
>>16364064>Mass = Gravity Dumbass detected. The gravity there would only be 25% more than Earth, with a margin of error of 20% because the thing is so far away. So somewhere between indiscernibly different and slightly uncomfortable for the first week.
>>16364064You just have to build up to that weight.
>>16364072If there's a gas giant there I would not be upset if they named it Polyphemus
>>16364074Statistically speaking, the anon you replied to probably weighs ~1200 pounds.
>>16364044>artist's interpretationI like how they put a multi billion dollar telescope up there and the only images they show are shat out by a graphic artist using AI.
>>16364044>8.6 times the mass of earthDropped
>>16364044>JWST detected carbon dioxide and methane in its atmosphere, which can only be produced by living beings.doubt.jpg
>>16364044Earth Cubed.
>>16364090Anon the telescope detects a point of light dimming and the info about the planet is organized in a graph. Do you think we can image continents?
>>16364107on my toes.
>>16364044Jay'Kwanda
>>16364044>What's its proper name going to be? Whatever its inhabitants decide, right?We could always name it after me, too. Bros would be ok with that, right?Let's be real, though. They're likely going to get some sort of corporate sponsor the naming rights for more funding and it will end up being called McEarth or some shit.
>>16364044Methane can only be produced by living beings? Quick, let's go to Titan!
>>16364131not him. what is your picture?
>>16364044If you actually found an Earthlike habitable world, New Eden seems like the cliche first choice.
>>16364067>>16364072Arda, because the field is full of fucking nerds.
>>16364236>This gif uses multiple images from the W. M. Keck Observatory in Hawaii to show four super-Jupiters orbiting the young star HR 8799. The closest planet shown is almost as far from its star as Uranus is from the Sun, while the farthest has an even larger orbit than Pluto’s in our solar system. -NASA>>16364239That blows so hard
>>16364044Chungus
>>16364244It's boring and blows just hard enough to be a prime contender.
>>16364044uraynus
>>16364244That's pretty cool. Thank you.
>>16364044If it is habitable we should call it planet mulch, dirt, soil and so on.If we run out of names, we can start naming them planet Bob (1), planet Bob (2), planet Bob (3) and so on.
>>16364131want SGL observatory
>>16364067Why not Lave?
>>16364299Call the planet Pathos, because that's all it will create among us.
>>16364259>>16364236What is this?
>>16364044>co2 and methane which can only be produced by living beingsDamn I guess Venus, Mars, and Titan are inhabited. Somebody should tell NASA
>>16364349It was on NASA's website. If I remember correctly, it's NASA's STEREO B satellite (one of two) which provide a 360 view of the inner solar system and solar winds.What made it interesting is that something seemingly crept into frame (some refer to it as "Ezekiel's Wheel," threw up a bubble, and then left.After people noticed it happen, it was removed from NASA's website and they deboonked it through NBC. The official explanation was, "it's no more than a trick of the light."Essentially, it was a "reflection of Venus" that caused a glitch in the satellite. Later, they changed it from a reflection of Venus to a "reflection of Earth." This is all from memory, so I may be sketchy on details. So to answer your question: who knows? I just think it's sort of cool and fun looking and it was something similar to what the person I responded to posted, so I just went with it. No idea what the truth may be.
planet obama
>>16364044Eaaaaaaaarth
>>16364677That's awesome. Thanks
>>16364699You're welcome, friend. Enjoy your day.
>>16364079Kek
>>16364044Planet McPlanetface
>>16364044>What's its proper name going to be?Musk... in honor of Elon Musk
>>16364954I think Jason is involved.
>>16364677>After people noticed it happen, it was removed from NASA's website and they deboonked it through NBC.https://stereo.gsfc.nasa.gov/artifacts/wheel/
>>16364112IF YOU DONT BELIEVE IN THE TERM FOSSIL FUELS, YOURE A BIGOT!
>>16365207I'm sorry that you appear to have literacy issues. Best of luck going through life with such a disadvantage. But I get it. Acting in such a way is how you feel better about yourself online -- if only ever so briefly. You go around insulting people because you believe tearing other's down will somehow build yourself up and alleviate your crippling depression and low self-esteem.Maybe you should start a med yourself? Or maybe they're just not working well enough?Who knows? Best of luck to you.
>>16364677Wrong board >>>/x/
>>16364059Given that FTL is impossible, even Proxima Centauri is a pipe dream. Any space efforts should be 100% focused on our solar system.
>>16365452He asked, I answered. Deal with it and cry somewhere else, newfag.
>>16365577>he didn't know about /x/No u.
>>16365599Doesn't even make sense. Newfags gonna newfag.
>>16364044>K2-18BAlready debunked long ago. There are no known habitable exoplanets. https://youtu.be/eMtBmF7izgs
>>16364059Where does the C come from?
>>16365630Schizos gonna schizo, but this is not the board for it.
>>16364044>>16365764Also>potentially habitableHa.>covered with oceansHa ha. >8.6 times massive as EarthHa ha ha.>JWST detected CO2 and methane in its atmosphere>which can only be produced by living thingsHa ha ha ha ha.This planet is such an obvious super-Venus and yet people still somehow managed to get duped into thinking it as a potentially habitable world.
If they still aren't sure whether the Trappist planets have atmospheres yet then how can they be certain of K2-18b's atmospheric composition? They both orbit red dwarf stars so the same spectral analysis principles should apply.
>>16364044Carbon dioxide and methane can both exist abiotically.
>>16365795Can a super-Venus have methane? Our Venus doesn't.
>>16365394>his lie gets exposed>resorts to waffling and insultsas usual
>>16365812Ours isnt super enough
>>16364044Retards. There is abiotic methane and co2 on earth... Tons of high pressure reactions can make these.
>>16364044Hmm let me guess>Orbits a red dward>tidally locked>extreme, life-annihilating ammount of UV radiation>just barely within the habitable zone
>8 times as massivedoes that mean 8g?
>>16365809another good reason to never trust pop-sci journalism
>>16365898ours is a super venus...but what you really need is a superdooper venus
>>16366047No. The gravity on the surface is about 1.25x that of the surface of Earth. Sure someone will correct me if I'm wrong but I think that's due to a larger diameter but it might just be less dense.
>>16366047nah, its just really big but made of polystyrene
>>16365869You realize that wasn't the original site it was located on and it came well afterwards, right?Of course you don't. Who am I kidding? Thinking is hard.If only I had mentioned: >This is all from memory, so I may be sketchy on details.As I said, literacy doesn't appear to be your strength. Which is surprising for someone with an internet addiction. But in reality it's just another example of a loser who was bullied growing up seeking out fights online as a means of alleviating their depression.
>>16366206>more waffle and insultskind of a one trick pony aren't you mate?
>>16366282>>16365869>>16365207The best part of that whole exchange is he was basically admitting he was wrong, but in the most abrasive way possible.
>>16365522at relativistic speeds you time becomes relative. on earth melenia may pass but on a ship it could feel way less.all you need to do is keep speeding up 1g for a few month will make you really fast
>>16366282Pointing out reality isn't a trick. Gain some self-awareness before you whine.>>16366384Keep samefagging and living in a fantasy.The point made stands.
>>16364677>It was on NASA's websitetheres all sorts of fraudulent trash on that website
>>16366451it doesn't stand at all and no, i didn't post this >>16366384. As hard as it might be for you to admit it, more than one person in this thread has noticed your bullshit. lol
Why are all these planets shitholes? You would think they could find at least one planet with Earthlike conditions by now. Starting to suspect the Fermi Paradox meme is complete bullshit since most planets seem to be uninhabitable by any higher forms of life.
>>16366512>i didn't post thisSure you didn't.Go ahead and point out what was incorrect.The page you linked was not the original page the video was released on.The page you linked is from 2020, while the NBC article and event are from 2012.The video in that page isn't the entire video.The whole post was prefaced as being from memory from the start.Other than that, there was no other claims made and the reason for posting was made clear from the start.The point made stands. Your illiteracy and inability to problem solve is a you problem.>>16366490I agree. Better off getting things from academic institution sites.
>>16364044big planet will have big godzilla kaiju right?
>>16364044Let's name it Gravity Trap since the second we land there, we're never getting off the surface again because it's too big to let a rocket take off.
>>16368176big planet, big moon...
>>16364044>We don't know what the surface of Eris looks like.>But we know all about this planet 120 ly away.How is anyone stupid enough to fall for this shit?
>>16364044Big Earth
>>16364051fpbp
>>16368237They can calculate the orbit size, planet size and the mass/density fairly accurately using transit timing and radial velocity. Those numbers alone tell you a lot about the planet.
>>16364044SUPER EARTH!https://www.youtube.com/shorts/BO_uTl14pqI
we gave up on jupiter's moons?
What if stronger gravity makes us develop bigger cocks.
>>16364044Sorry chuds.You can't live in that gravity.
>>16364044Chungo
>>16368176Yuge!
>>16364051>lol it's probably more like neptune.they do spectrography, idiot
>>16369447>LaveDepends. The innermost are radiation worlds unsuitable for humans. The Galilean moons might have life and therefore be off limits.
>>16369496go do some math, ignoramus
>>16364044>Which can only be produced by living beings"What is Titan?", Alex.
How would aviation or spaceflight even develop on a super-earth? Even with our relatively low gravity rockets can barely make it into space with a usable payload. Any civilization on a super-earth would be totally fucked.
>>16364044Why don't we have a big Earth in the solar system? All we have are shitty Mars and Venus. It's not fair.
>>16364044Super Earff
As if the NHI's living there already would permit us to colonise. We're permitted mars, and that's only cause its a dust bowl.
>>16371011Aviation can be done with huge area wings. Reaching space will be harder, perhaps by first floating the rockets as far up as possible with balloons. The increased air pressure will both increase resistance as well as vibrations.
>>16372722Getting to space is about speed not altitude. Getting past the stratosphere is something like 3% of the work
>>16364074dont tell me you forgot the altitude
>>16364685>my uhhhhh fellow aliens.>uhhhhh we've successfully droned striked uhhhhh>alien libya. God bless uhhAmerica.
>>16364044WhiteMan Worldin honor of the species that made it possible and discovered it
>>16364239yes and the continent we land on shall be called Valinor
K2-18b inhabitant hereFuck off we're full
>>16369443Supearth
>>16364044>Earth density: 5.5 g/cm3>K2-18b density: 2.67 g/cm3K2-18b is about half of earth's density so it's a slushball. It's not a rocky planet that we could actually live on.
>>16364044Rome
>>16370772oh look, buncha hand wavingwave yourself out, sped
>>16375832Terracotta army
>>16364044Lets take it.Think of the corporate profits!
>>16364233>McEarthMaybe in 90'sToday it would be called>Floyd Ada Lovelace Goldberg
>>16364044I suggest "Serenity".
>>16364044>which can only be produced by living beingsthis is so retarded
>>16364044This planet is just a hot neptune that's slowly losing its atmosphere because it's too close to the star. Nothing to really get excited about.
>>16364044EarthX
>>16372784>Getting past the stratosphere is something like 3% of the workOn Earth, perhaps, but in a super earth? The atmosphere might be twice as thick and twice as dense, which makes for a lot of resistance. I know that you need speed and reach escape velocity, but it is also about spending the energy of your space craft where it matters.
>>16364044We can build ships that can travel about 1% of the speed of light right now. It could reach the planet K2-18b in about 10,000 years. Personally I think we should build a massive generational space ship and send the people out there. Then if global warming,a new pandemic, an asteroid or WW3 happens humanity can still survive.
>>16364044I am terrified of the giant aquatic people that surely inhabit this planet
>>16364044I never understood how there can be a liquid ocean on another planet but with nothing in it. Like if the planet can have water why doesn't it have life in it? Wouldn't the absence of carbon or whatever prevent water from even forming?
>>16365522It would take a bit over four years for a ship to travel there, how is that a “pipe dream”?
>>16364044Gravity Well Hell.
>>16378349>It would take a bit over four years for a ship to travel there... at light speed. which is physically impossible.
>>16364044>carbon dioxide and methane>only produced by living beingsWhy even report this shit if you're going to destroy all credibility with such a stupidly false statement. Unless you're telling me there's advanced civilizations on Venus and Neptune
>>16378194>Wouldn't the absence of carbon or whatever prevent water from even forming?
>>16377663or maybe we could use all that money and fix the fucking planet instead because we can do that.
>>16378194Water comes from space. You don't need carbon on a planet for it to have water.
>>16366124Kek
>>16369624Big. Big Chungo.
>>16379780shut up fag
>>16379780little morse code board. >Not treating it as morse>Expecting enlightenment
>>16378186due to the immense pressure all beings there would likely be smaller than any counterparts here. But their skin would likely be as thick as concrete and have rebar-like bones
>>16379780How much potential is in this moment with me, ever heard the story where you have a lot of correcting to do and require me more? The way I see it, which is potentially much much much too much more intellectually and goodly than you. You've lost, cause your heads to small, and you didn't give the product/situation enough property
>>16379792Even the 2 distracts me from making the perfect statement. My former message was ruined and didn't get across to you at 'property'. So, I know you've lost. And that's final. You're not doing very good. I can correct you.
You're idiots. I'm going to hell anyway. I might try to betray you. Warning
>>163640648.6x the mass implies that has ~2x the radius of earth which should make the surface gravity lower than you predict. For instance, Jupiter only has a surface gravity of 2.528g, when it is 317.8x Earth's mass and 11.2x earth's radius.
>>16364044>far away blue dot matter to me lots
this planet doesn't even exist
>>16379893Truke lol haha it's happening now I'm sure. It tiemI'm a bit lost, but the shape of my head today explains how lost I'll become in the future.
>>163798954ce.Training nowUpgradesPaychecks and WageThe highest competitorsComing soon and lots more.
>>16364067Just call it Terra Duo
>>16371011Just use trains and Gauss guns.
>>16377663We're not at that technological stage yet, it would be like first industrial revolution people trying to build a jet fighter.
>>16379917We need to fake FTL attack by Aliens so gov will go fullout on new tech.
>>16364044Planet Jason Parser.
>>16364044>CO2>methane>only life can...TIL fire is life.
>>16381981in all fairness, methane and CO2 on a planet in the habitable zone is a strong indicator of life but not 100%
"Ass planet."t.
>>16381981Well, it talks, doesn't it?
>>16364051It might still be a terrestrial world. Gravity does not linearly correlate with mass so we might be able to live there if it's like 1.5g
>>16382709The atmosphere is mostly hydrogen so sounds like a mini neptune
>>16382756>It might still be a terrestrial world.unlikely. density is too low.
>>16364067we should call it sollessbecause thats what it is solbros wwa?
>>16364044i don't understand the point to search so far away, even if you travel at half of the speed of light, it will take you 240 years to get there, so almost 4 generation of people (3 born in space and the ones who started the journey) this will only work if you send a crew of thousands to make a colony (if something bad happen with mankind or Earth
>>16383810>i don't understand the point to search so far awaybecause no amateur astronomer can possibly verify anything since all the data comes from the billion dollar oracle. they could literally fake 100% of their data and no one could prove otherwise.
>>16383810It gives some ideas of where to point more powerful telescopes to look for life once we get them. Actually colonizing an alien biosphere is a pretty retarded idea. You're probably better off starting from scratch with a barren planet and even better off just building space habitats.
>>16383810>i don't understand the point to search so far away,They do it for convenience. They point the telescope at a location where there are lots of stars, with no regard to distance, and harvest loads of data. You notice this particularly with the Kepler dataset, they're thousands of lightyears away.There haven't been any complete planetary surveys of the nearby stars, aside from Proxima.
>>16383810Androids with human or greater intelligence will be sent to explore these stars so lifespan isn't really an issue. Our machine descendants will eventually colonize the entire galaxy.
>>16364244>kek observatoryI’ll believe it when I see it.
>>16379610Yeah bro, just a couple more billion dollar gibs to the poor, it will work this time promise
>>16379013>which is physically impossible.photons seem to have no problem reaching such speeds, chud
>>16364051I doubt it is that bigger than earth! But not too much.
>>16366031kekI should make a bingo chart for "habitable exoplanets"
>>16364044>new planet detected>"habitable">gravity is higher than Earth>every timeCould this be the so-called Great Filter that's preventing spacefaring ayys from visiting us, or are we just incapable of detecting and analyzing low mass exoplanets?
>>16387136>gravity is higher than EarthThat is because large planets are detectable, while Earth sized planets are much harder to detect.
>>16364044Bob
>>16365522>t. antiscience retard who hasn't been keeping up with recent advancements in spaceflight and has no idea what he's talking aboutI realize your not entirely aware, but you sound like a fucking luddite moron right now. Scientists are currently studying the possibility of FTL travel and already have some understanding of how to create one. Google Alcubierre drives.
Wakanda, in honor the oppressed continent of Africa.
>>16390090So it's the latter, I guess that's something to be optimistic about.Will it be possible to actually detect small exoplanets soon, or is it one of those problems that becomes exponentially more difficult to increase the detail?
>>16387136For the moment we are detecting many "super earths" and they are the easiest to confirm liquid water. We can actually find huge numbers of smaller planets but it's too hard to see their composition.Also consider that the nature of the star helps us make predictions. Planet B of Proxima Centauri is probably not going to have an atmosphere because it's too close to its star which makes it obviously bad for life. Probably planets need to orbit a star more like the Sun so that the habitable zone is far enough away from bursts of radiation. The Great Filter might be that intelligent life needs a planet with almost the same history as Earth.
>>16364064show your math
>>16364051fpbp and /thread
>>16364044CO^2 and methane are only produced by living things. stopped reading there.
>>16390615If you are "studying the possibility" of building a machine that does X, that means that you currently cannot build the machine.
>>16387043Help me out here
>>16391917Free Space should be (Gravity/Mass > 2x Earths)
>>16365768He got the name wrong. It's Proxima Centauri b. It can also be called Alpha Centauri Cb, though. In that case the "C" denotes that it orbits the third star of the Alpha Centauri system (Proxima Centauri) and the "b" indicates its the first planet discovered in the system (it starts at b and not a because a would be the star itself).
>>16392393>(it starts at b and not a because a would be the star itself).I've never agreed with this reasoning
>>16364044Planet Amazon Prime(tm)
>>16379829Jupiter is a gas giant with an unclear surface. They're counting the surface starting from the very beginning of the cloud deck which is as retarded as calculating Earth's surface gravity starting from the very upper parts of the atmosphere.This planet would break our legs just trying to walk. If we could count the surface gravity properly from the actual surface and take into account the much higher atmospheric pressure and density, then it would easily be more than twice the g on here.
>>16383810>he didn't pay attention during special relativityOnly an external observer will experience your .5c trip taking 240 years. For you it'd be 207 years. At .9c it would be 104. .95c would result in 74 years from your point of view.
>detect a micro drop in light emission from a star a quintilliong gorillameters away from earth>WOWZERS guise this planet is literally just like earth WE KNOW there are three legged monkeys thriving in their cabron homoxide atmosphere here's a cgi render of what it DEFINITELY looks likes.oyencetards at it again
>>16390662>Will it be possible to actually detect small exoplanets soon,Sure, scientists are working on it. >or is it one of those problems that becomes exponentially more difficult to increase the detail?Much remates to the diffraction limit which is inversely proportional with the diameter of the optics. So it is closer to 1/x rather than exponential, but this is still very expensive. You also want a star shade placed with great accuracy and precision at a great distance. That too will drive cost.Still, these are more engineering problems rather than fundamental science problems.
>>16391917Habitable planets arond red dwarves will necessarly mostly likely be tidally locked.
>>16364044>"this is X, a {thing}.">habitable planet>artist's impression
>>16393091this is my girlfriend kuromi
>>16364044If we ever get to that rock, our balls are going to drag along the flooralso your kids will be midgets and if you fall you die
>>16394876Surface gravity is about 12 m/s^2, about 20 percent more than on Earth. If you believe your genitals will detach, space is not for you.
>>16394922How do you get that result?
>>16395026R^3 = 8r^3 => R=2rG m/r = 10M=8mR=2rG M/R = 4 G m/r = 40But maybe I'm wrong.
>>16395092Oops, I forgot r is squared.G m/r^2 = 10M=8mR=2rG M/R^2 = 8 G m/(4 r^2) = 2 G m/r^2 = 20Closer to 12, but still off...
Average density of the Earth = 5510 kg/m^3Mass of Earth = 5.97*10^24 kgRadius of Earth = 6371 kmρ = M/VV = 4/3πr^3ρ = M/(4/3πr^3)r^3 = M/ρ*(4/3π)r^3 = (8.6*5.97*10^24 kg)/(5510 kg/m^3)*(4.18879)r^3 = (5.1432*10^25 kg)/(23080 kg/m^3) = 2.228423*10^21 kg/m^3r = ∛(2.228423*10^21 kg/m^3) = 1.3062*10^7 m = 13062 kmg = GM/r^2G = 6.67408*10^-11 m3 kg^-1 s^-2M = 8.6*5.97*10^24 kg = 5.1432*10^25 kgr = 13062 km = 1.3062*10^7 mg = (6.67408*10^-11 m3 kg^-1 s^-2)*(5.1432*10^25 kg)/(1.3062*10^7 m)^2 = 20.1189 m/s^2balls and tits touching on the floor
>>16395100>>16395281>>16394922
>>16364044Boomers would call it New Earth or Big Earth and I'm ok with that.
>>16395281I forgot one fucking ^ in the gravitational constantNo one tell, I don't want my parents to beat me
>>16395026I googled "k2-18b surface gravity", got various numbers, mostly around 12 m/s^2https://en.wikipedia.org/wiki/K2-18b : 12.43 m/s2 (no source)https://www.space.com/alien-planet-k2-18b-surface-conditions.html : "a visitor to the world's surface would feel 37% heavier than he or she feels on Earth. (K2-18 b's higher mass is mostly offset by its greater size in this regard, because the gravitational force decreases with the square of the distance from a planet's center.)"https://www.reddit.com/r/spaceporn/comments/18hehsw/rendered_comparison_between_earth_and_k218b/ : DMS Surface Gravity: 11.57m/s2 (1.18g)Strangely/disturbingly, Google states 11.57m/s2 as the truth but has no direct links.Bing fails differently: "K2-18b, an exoplanet, has a surface gravity nearly twice that of Earth" citing https://www.space.com/alien-planet-k2-18b-surface-conditions.html which in reality states what was already quoted above. In summary, it is a mess.
>>16395308I just checked the density.2.67 +0.52 −0.47 g/cm3So basically it is not like Earth at all. More like a Mini-Neptune that kills us the second we step on it.r^3 = (8.6*5.97*10^24 kg)/(2670 kg/m^3)*(4.18879)r^3 = (5.1432*10^25 kg)/(11184 kg/m^3) = 4.598712*10^21 kg/m^3r = ∛(4.598712*10^21 kg/m^3) = 1.6629*10^7 m = 16629 kmg = (6.67408*10^-11 m^3 kg^-1 s^-2)*(5.1432*10^25 kg)/(1.6629*10^7 m)^2 = 12.4134 m/s^2
>>16364044big-ass earth>Verification not required.
>>16394922It does mean dropping something on your toe will hurt 20% more
>>16364044Ke'tew
>>16395288>New EarthHow is that bad? That means we get to be Old Earth. Sounds based.
>>16364079
