Habitable Exoplanets | In Search of Earth 2.0 

there must be one, but everything is so far away i doubt we will even reach one

I guess no one is crazy enough to thinks about another galaxy. But argument sake, in endless universe there are infinite number of exact copies of Earth with all us on them including.

I don't think the question is if another habitable planet exists. Even if our speed of travel increased exponentially, getting there is unlikely before we become extinct.

the real questions how common are they and if well be able to find them before expansion hides them forever.

Well yes, it has to be out there, but when we make it that broad, it could be the nearest being 3 galaxies over, in which case we would never meet. From everything I see, it seems if there is life at most there are probably somewhere between 3-10 habitable planets in the entire galaxy as most places in the galaxy are totally destructive for sustainability and others are to sparse in heavy elements. We actually have one of the rarest types of stars, we happen to be in one of the less active areas of the galaxy yet occasionally pass through the spirals for extra heavy elements, and we needed a metal rich star in the first place. So with everything we know, we can rule out life in the center of the galaxy, in star clusters, and any stars of low metallicity. With that we still have a decent amount of the galaxy left though still a large portion of the galaxy are in star clusters which are far too chaotic to be stable. They also need to be in fairly spacious areas as to be far away from super novas, gamma ray bursts from neutron stars, neutron star pairs, and white dwarves. But most importantly, they can't be the stars outside the galaxy or at the very edge as we do still need some heavy elements for life (phosphorus is needed in all life and is one of the more rare elements in the universe). A lot of people also get caught up in these claims of "life not as we know it" though the elements are identical across the universe so we can kinda assume life must be as we know it as there are only so many strange ways elements can combine and for a majority we are made of the most common elements in the universe. Only exception being phosphorus which is the backbone for DNA. However, considering phosphorus is inherently rare even on Earth, we can tell there probably isn't a more suitable replacement.

2768: Humanity invades Trappist-1 and harvests their atmosphere and liquid water

Can’t wait to find out why all the text you type is in the bold font!

Ja

æ

@Zuwaria Sarafine you’re ignoring how this planet might be very far away and hard to contact, and there’s also the problem of ethics, as a lot of people aren’t going to want to leave the rest of humanity. Plus, there’s no way children are going to be sent there, as they would be leaving their parents.

You have no idea of what you're talking about, do you?

I'm not sure that would be the case. The Galilean moons all orbit relatively close to Jupiter and each other and are all tidally locked to Jupiter. Io, Europa, and Ganymede are in orbital resonance with one another, though, so these planets may also be, too.

Ruuuuunnnnnnn

not again

"you know what I hate about travel at relativistic speeds? Everyone else gets older, I stay the same age." -- Matthew McConaughey

I understood that reference

I understand this reference

x2.

Look up "Space Engine" and fly around the Universe yourself.

Me too!

Agreed. Exogeography is always interesting.

He uses space engine for a lot of footage in this btw

yes

Check out Isaac Arthur and cool worlds for similar

You might also like Astrum

Seconded!

@@wahyubudiono9130 Oh well yes in a less "atlassy" way ^^ Good channel. ParallaxNick as well is excellent

But what is the price we have to pay? yea nobody knows... maybe time to send someone out there to check the best habitable planet out

@@VintageCR there is a video that calculates how much earth would ikely cost

@@yaboi7239 There's also a video out there how to calculate and solve mathematical problems. But do you here me ask about them? no.

Sure hope the planetary market isn't as bad as some housing ones. 😂

Trouble is, if any extinction level event were upon us you can bet that all your tax dollars invested into finding " Earth 2.0" would be for the " Elite, privileged, and the politicians not for any of us regular folk.

It’d be Sol-1 C

@@tyger5645 the first planet starts with a B the star is A

Sol-d

Sol D.

@@Xelaria in two star systems I believe the second star takes the title of "b".

?

I understand the reference. Baby yoda

haha not these days, they would be inside on xbox confused of what gender they are

im sorry man but gliese 667 and 581 were deemed to be artifacts and non existent

It's all fake dude

So in reference to a comment above asking what Earth is, it would not be Sol 1-D, but Sol 1-A. Since I'm pretty sure we discovered Earth before the other planets lol.

@@EvilParagon4 I am not sure which comment you are referring to, but this sounds like fun little rabbit hole to explore! If we want to classify our own solar system according to exoplanet naming conventions, it would likely be Sol b, Sol c, Sol g, Sol d, Sol e, Sol f, Sol h, Sol i. Here is my justification for this naming scheme: Planets are named with *Star name* and then a lower case letter. Upper case letters are reserved for stars, if the system has multiple. Planet naming always starts with "b", because "a" is assumed to be the star they orbit. The term "planet" comes from the Greek "wanderer", meaning Earth was not recognized as a planet until recent times. Mercury to Saturn where all known since antiquity, so I guess they were all discovered together In that case, their names would likely follow their order from the sun (the sun's name being "Sol"). In that case, Earth was "discovered" after that, followed up by Uranus and Neptune.

@山モﾑ丂モﾚ Letter names are assigned based on their order of discovery. Earth is probably the only planet that was or will ever be discovered BEFORE its star (especially if you don't count the Sun as being discovered until heliocentrism taught us what we were dealing with, but inarguably the first human knew that they stood on something before they knew that something shone down on them). Thus Sol 1-A. ...Or maybe even Terra 1-A, since the name being the star in all other circumstances could just as well mean that the name should be whatever was discovered first, and thus the star in all cases other than ours.

WELL UR BRAINY, REALY COOL****8888****

@@EvilParagon4 Naw we already live in it Uranus would be

where can I read ur books

Came here to comment the same thing. Ideas for scifi locations are running wild right now!

Detecting multiple leviathan class lifeforms in the region. Are you certain whatever you're doing is worth it?

@@ShihammeDarc I get that refference 🤣🤣🤣🤣🤣

Scuba snack

Bye titan sea 💀💀

Subnautica 💀

Same. Such great content

me too

Yeah lol I finished showering then the notification popped up

So you haven't checked the bell icon?!

@@samerm8657 the notifications tend to be a bit late on the draw. When I saw it it was posted 16 seconds ago.

Go check out space engine. It's what he's using for the planet scenes. You can fly through the Universe yourself. RU-vid it

How beautiful ⭐

28 minutes is a long video? 🤔

@@Brendan-Black with my attention span yes 😂

@@Brendan-Black average youtube video is 10 minutes long

His voice is so sexy lolol 😃

@@yxt8948 yo wtf

Wait, astrobiology is a real thing?

@@grillygrilly Absolutely! There are few job opportunities at present, but it's a fast growing science. If you would like to know more about it, the Astrobiology Wikipedia page is a good place to start. The NASA website also has lots of resources you can read.

Lol me either was imagining some stories including those planets.

I was mapping out biomes as he talked

have you seen the show "alien worlds" on netflix?

@@raidermaxx2324 and "lost in space"

@@roku6194 ya thats a good show too.. but "alien worlds" is like a national geographic documentary on a hypothetical alien world, and what possible alien lifeforms might develop on for example a tidally locked "eyeball" planet, in the goldilocks zone of a red dwarf star, and "lost in space" is that re-do of that 1960's sci-fi show... but its done well for sure! just a bit different in context...

You should make one. :) Give it a shot.

ikr, people discuss exoplanets like we can reach them with our current speed. We are not reaching any exoplannet until some alien gives us the v69 engine to put on our rockets. The best chance we have is moon and the mars, that too we are suffering to reach.

Try "Astrum" if you don't know it yet 😊✌🏻

I 💖💖💖💖💖💖💖💖💖 Kurzgesagt!!!

In visible light however they'd still be red, wouldn't they? Maybe dimmer depending on the relative amount of energy being output in infrared, but for visible light illustrations red would be the main color.

I've heard that red light of a certain wavelength and amplitude is actually good for our bodies.

@@metametodo no, you underestimate how bright they are. From a distance, they appear dim and red, but they're still stars. They'd still be extremely bright to look at from an orbiting planet, so you wouldn't be able to discern any red color. That majority of red light would just contribute to the dimmer environment, which would have the light levels of a cloudy day.

@@ianmeade7441 At first I understood that OP meant that they weren't all red, but other colors as well. That's what I was trying to grasp on, but now I figure they're talking about estimating their tonality and intensity. But I see what you mean. If I'm no wrong, I believe our Sun also looks white from space. I think this debate on a star being red or yellow doesn't consider literal eyeball observation from close, but the peak wavelenghts the star emits. Because if you consider all wavelenghts of light emitted it will end up aggregating into something close to white light to the unaided eye.

@@metametodo yeah, that sounds exactly right! I think the imagery of red skies on worlds orbiting red dwarfs comes the fact that most of the ones we've found are tidally locked. For the habitable regions, the sky would actually be a permanent sunset red. But for planets that rotate normally, it's like you said. Our eyes wouldn't notice the mostly red spectrum in the aggregate sunlight

You're just intime to save this earth from it's destruction due to climate change and capitalism

@@Otzkar Ugh.. I know right

@@sneksnekier6764 Capitalistic economies need to endlessly grow, and only care about profit. So, as long as the fossil fuel industry is profitable, it will continue on its path of destruction...

@@warmbabaganoush4825 no capitalistic economy would NEED to grow if it was another mindset going into it. It only needs to be plus-minus zero to function forever. Companies, families, individuals, local governments, global governments, cities. All of these at plus minus zero should be the ultimate goal for any utopia, tragically this would also mean giving up the free will you cherish so much and force society to decide and MONITOR certain factors over time, to steer the economy through outside events (seasons as a simple example, need more heat through winter etc, need medicine in a pandemic or cold season blah blah you know this). The only reason companies NEED to grow in our current society is because most of them take LOANS and need to pay INTEREST, thus creating DEBT which has to be paid BACK out of fucking THIN AIR. Imagine a country which a set amount of money distributed evenly between its inhabitants. They'll begin to form services and exploit resources to sell stuff, everybody would have to do that to gain money. If there is someone greedy making tons of money because he can, well, he'll be rich and that's it. There is no stock market, no banks. No way to make rich into SUPER RICH without doing anything by exploitation of the poor. That in turn would mean his business, since he is the richest one, is the one most people are ready to give money to. Sprinkle in a bit of taxation to cover sick or unable people as well as pensioneers, boom, it's great. Why can we not have this nice thing? Greedy people. Not us normal people. Market systems generating DEBT percentually after time are a CANCER bringing nothing but suffering.

@@ddlc_monika Wouldn't it be reasonable then to implement regulations which prevent that certain individuals acquire unproportionately large amounts of money and power? 🤨 Like, no leaders, everybody organises together?

Anton Petrov is an astronomer RU-vidr

If you disregard the habitable requirement/ideal then there are some very strange exoplanets out there. For instance "Hot Jupiters" which are gas giants orbiting far closer than Mercury does. Or i believe there is an exoplanet that is basically a giant diamond because it was originally a star but a different star ripped away its atmosphere leaving just the giant jewel. (Note that it is covered in dust and junk so it is not a shiny diamond but looks more like any other rock). That very short list also leaves off so many theoretical planets like rouge planets (planets without a host star), or interesting hosts like neutron stars or black holes, even if such an object would be short lived or highly improbable.

Planet people , One hidden possibility her is that the cores of red-dwarf planets may be smaller than if they were yellow-dwarf planets . If true , this could be due to differential- stripping of magnetic/paramagnetic materials from the protostellar-disks . The above would greatly reduce the amount of heat put into these planets interiors , but this would typically be counter-balanced by tidal-heating . The effect of this difference upon convective -cells and plate-tectonics is unknown . The above , along with slow planetary-rotation , is likely to greatly reduce or eliminate any planetary magnetic-field . The compensatory effects might be a strong induced magnetic-field , and a very dense ionosphere . The above two effects could act together to mitigate the atmospheric-stripping effect of the host red-dwarf star . This could be considered the exoplanet equivalent of the thermal Leidenfrost Effect . The implication of the above is that even extreme solar-wind pressure and events , do not necessarily result in the removal of a red-dwarf exoplanet's atmosphere . Planets such as Trappist-1d have a very good chance of possessing significant atmospheres , possibly containing large amounts of "fossil" oxygen , liberated from water-vapor by photolysis . *.Support provided below .

To examine this subject in greater detail , go to RU-vid parent company Google and type in... Why does Venus spin backwards . Go down 10" and search again ; then choose .51 . Concentrate on it's end .

No, those freaking leviathan doesnt make it habitable, dont count me in, i'm staying on Earth

@@Nebo8ful who said earth dose not have them?

@Nebo8 nah planet Earth sucks

XD

You can do that with women too

@@spikypoo8270 You can do that with companies too

Giving one planet to recover while u crap another lol

@@spikypoo8270 pump and dump !!

@@tomsmith4542 We're all going to make it.

Be His Channel Member

IKR Smh my head

/gm creative

Stfu

@@AneriGS my man just said “Shake my head my head”

@@zenithchan1646 bro you didn't need to destroy him so bad with those facts and logic. RIPin peace

WOOOOO YEAAAAAAHHHH BABY!!!!

I postponed dinner to watch this . This is hitting very different with empty stomach and the aroma of the food.

It's simple, now you can learn whatever the fuck you want. You aren't obligated to learn this motivationless with a unchallenging boring test waitimg you at the bottom of the calendar sheet.

@@pedroivantaveraferreira3037 It really is a kind of freedom. My geography teacher was the most boring person on earth (she had that Margaret Thatcher kind of air about her) and her lessons really zapped the interest from me. I was quite surprised myself when I relearned how interesting this topic is

Gotta be strong to live there.

@@Mathis218337 and squat!

@RITVIK MENON shush kid

@Bunny Hunter shush kid