Gliese 581g: First Earth-sized planet discovered around a star's habitable zone

[janmauricepogi]

even if we found a planet we cannot reach it!

[UNSCful]

@jaymarlex200 NO it like earth has tree,grass,water liquid ,oxgyen,and more as gliese 581g is has habitable zone. We not yet proof of them !!

[erbeeflower]

you could also make a video using the least suggested idea :-)

[tcsdef]

if the planet belongs to a star that is a RED dwarf, wouldnt that mean the star's and that whole solar system's life is coming to an end?

wouldnt that also mean that life on that earthlike planet has ended?

in 200 years, as it says in the link provided, when we have more info, that planet would become like venus or mars today

[Infocollective22]

@tcsdef REd dwarfs are like the usn,just smaller and less bright. It's the RED GIANTS that is the bad news

[AgrivatedKillah]

@tcsdef That's a red giant buddy.

[myxbabez]

you should watch you back, you're under survelance by your government. look at the car at your back and find out who are they. Hmmmm maybe, just maybe :)

[myxbabez]

you should watch you back, you're under survelance by your government. look at the car at your back and find out who are they. Hmmmm maybe, just maybe :)

[tightsharkyj]

lol so funny

[corals73]

you ryt

[majikJess]

lol dis is funny yet very interesting

[CandelaSiNN]

we are going to live on earth and die on earth, and punish in hell.

[Yrezifity]

hey! i'm bored! lets make a video in my car while i'm waiting! O_o!!!

very nice video anyways :))

[envelope91]

They say don't speak in a phone while driving, but they never said anything about recording videos about the discovery and information about the Gilese 581g, do they?

[venalx3]

The liquid water that MIGHT appear on the planet will lead to plants, which will lead to oxygen and sucks up carbon dioxide which is not needed.

h' you know.

[hearNyou]

Keep looking up !

(except when driving)

[edgar5859]

since a year is 45 day would that cause the living things to age faster? not age in years but physically i mean.

[Salien1999]

@edgar5859 No, a year is when a planet makes a full orbit, nothing else. It would not cause everything to physically age faster.

[Triple88a]

tides are probably going to be a bit insane if its that close..

[RyuDarragh]

"Seems to be tidally locked" or "is tidally locked" or "May be tidally locked" ? Some question there.

[AmyK007]

Your videos are excellent. No matter what you do I will love it.

[DailyProphetNews]

If this don't have intelligent life, I will laugh. God created only ONE place with intelligent life and that is EARTH!

[spagget]

@DailyProphetNews

EARTH IS a habitable planet.

EARTH IS PLURAL if you'll analyse in the bible

[poochpoints]

I thought Gliese 581C was the 1st earth like planet discovered in 2007, what has changed "C" is now "G"?

[Pacs]

@poochpoints

Well actually, Gliese 581c was a sensational discovery back in 2007. However, further analysis and peer reviews revealed that this planet may possibly be more of a Venus-like planet rather than an Earth-like planet. Later that year, another planet was discovered in that same star system and was named Gliese 581d, like Gliese 582c, it was pinned with expectations that this planet may be Earth-like. Again, further analysis revealed that this planet is more Mars-like than Earth-like.

[Pacs]

@poochpoints

The discovery of Gliese 581g is more exciting since this planet lies between the orbits of the planets Gliese 581c and Gliese 581d much like how Earth is located between the orbits of Venus and Mars. Plus, it has been found out that this planet is irrefutably square in the middle of Gliese 581's "Habitable Zone" where liquid water may exist.

I hope this answers your question poochpoints.

[RealHeisKa]

is there like 2 same person disliking his videos

[sanitarium09]

Please do a video about gamma ray bursts.

[Pheonixx75]

@sanitarium09 that would be a very intresting video x3 XD

[TheLiberalSoup]

It's funny how when you think about it, you must have had to repeat this a million times over to get it right, i mean because when i make videos, i always have to do that. So wee're watching probaly your 20th attempt at this.

[zcxvasdfqwer1234]

Oh its home! All that green! I'm stuck in the western desert for a bit. Can't wait to go back once I saw that sign "Baltimore"

[CharlieTeague]

Could you please do a video about the moons of Jupiter?

[NightlyAuhsoj]

I don't know how anyone manages to do anything else while driving. I have to turn down the sound on my radio to find street addresses.

Interesting news as well. I think I'm going to start my adult life from scratch and be an astronomer, any advice on were I should start?

[jamesgambino]

Stephen Hawkings, Michio Kaku all talk about aliens. The UN just appointed an Alien Ambassador...no joke. St Malachy predicted the 111 popes in the the 10 century. We are at the last Pope now; Mayan Predictions, Iran with nukes, Pilots came out recently talking about nukes shutting down in the 60's by UFO's. The news is preparing society for disclosure so we dont freak out. The Vatican and pope said if ET exists, then God must have created it. Gliese 581G now? Something is going on my friend

[altjff15]

@jamesgambino Its Satan heading the impending NWO

[Capeau]

great editing :D

[pippigladstone]

how long will it take to get there

[jamesgambino]

@pippigladstone Its 20 light years away. Means if we can travel at 186,000 miles PER SECOND, then it will take us 20 years. Basically using today's methods, we will never get there. We need to shrink space in front of us so the distance is less. Our galaxy is 100,000 years across. There are 200 billion galaxies. There is life out there.

[rextrek]

I hate traffic...thats where "Transporters"would come in handy! Love your channel

[cecasander]

I also heard that this planet (Gliese 581 g?) was in a tidal lock with the star so that it had a permanent hot/light and cool/dark side, which would prevent the forming of a stable atmosphere. But wouldn't the theory that it's in the goldilocks zone also mean it's far away enough not to be tidal locked, as the star is smaller and thus has less gravity? Mercury and Venus are relatively closer to the sun (outside the goldilocks zone) yet they aren't tidal locked.

[skaterkid1477]

u got the best subscribers like none of your videos get disliked except a few times

[14Greekboy14]

nice glasses

[1961arnie]

why can't we send the becks orially and pallins home ???

[gamper33]

Awesome video

[PABPrankCalls]

the implications of this discovery are staggering.

[AinEstonia]

@PABPrankCalls Yeah, but it's unlikely we'll reach it in our lifetime, and I hope we won't, screwing up 1 planet should be enough.

And if life outside our planet will be discovered, I except it will be discovered on a planet/ moon in our Solar system.

Plus, a few months after the discovery, no one will care, well most won't, it will just be an acknowledged fact.

[xXCrimsonVirtueXx]

@AinEstonia Accept*

Lol

[AinEstonia]

@xXCrimsonVirtueXx Actually it should have been "expect", but thanks for pointing out my mistake, muchos gracias.

[enkeksinickia]

I love that you did this to prevent road rage.

[jpham227]

I also think it is funny how pissed off you sound. !!!!!!!!!! :)

[subh1]

thank God.. we didn't have to witness a car accident! btw.. cool vid!

[jpham227]

hilarious.... they made it illegal to talk on cell phones while you drive there, and here you are, making videos instead. you are silly.

[DeWinds]

I swear I remember something like this being reported before...possibly even in your vids o_o

[camdengreen]

It is only about 20 light years away -- relatively close.

[camdengreen]

If you were standing on the surface of this planet, what would its star look like relative to how the sun appears to us?

[dragefyr]

@camdengreen My guess is that it would be enormous in the sky.

[546046]

Even though it's within the habitational zone, isn't there a only a very small chance that the planet actualy has liquid water on it ?

[ProElite15]

@546046 it probobly got water if it got good temperatur but what the problem is, is that the atmosphere needs to have good gases that are not poisinous from creatures

[RyuDarragh]

@546046: That's the definition of "habitable". If there is any water at all, some will be liquid some part of the year. Just as Mars and the Moon have been found to have water, the odds are near unity GL581g has water as well.

[Salien1999]

@546046 The scientists have said that there is atleast 99% percent that the planet is habitable.

[Tarlev]

@546046 If you think of the theory about how water ended up on earth, then the same theory should be possible at that solar system.. Brought by comets and asteroids that is.

The problem with Gliese 581g, is that its star as mentioned is a red dwarf and much cooler.. Which results in continuesly minus degrees, so all water that could be there, will be frozen solid.. So whatever life that might be there will be, its very primitive at best.

[tandis97]

@546046 you dont have to be only in the habitable zone. you can be in it but orbit on the edge. and the planet would freeze. YOU NEED to be in the middle of the zone to have life on a planet

[mrdontgiveafuuck]

@546046 A habitable zone is where water exists in a liquid state. Aint I right?!??

[546046]

@mrdontgiveafuuck Actually no. The habitable zone is the distance from a star in which a planet can maintain liquid water on its surface. Just because a planet is in that zone doesn't neccessarily mean there is water on it.. In fact, the odds are highly against it.. which is what I was trying to point out.

[dragonfirefoxx]

Ok so is there such thing as a worm hole to which we can go from one place to another faster than traveling in space normally? If I made ANY sense at all lol So if we traveled in space normally, could take yrs to reach one part of the galaxy but if you did it through worm hole, its half the time?

[sneakerset]

@dragonfirefoxx Hmmm....(in case no one else responds to your valid question) you might want to review Wiki's one-pager on the topic (wormholes).....but for a closer in-depth look at "wormholes" and space travel,I'd suggest (Google) "Frontiers of Propulsion Science (AIAA). You might also take a look at (Google) Fernando Loup's ideas about the topic....

[dragonfirefoxx]

@sneakerset Oh thank you and it was just a thought since watching Star Trek, Star Wars, etc. always heard of it. I will google those and thanks for your time!!

[sneakerset]

@dragonfirefoxx You're welcome. Space dot com has a search engine available,too.

[EchelonsBST]

@dragonfirefoxx maybe a fraction on the time or you could leave out the worm hole before you enter...

[dragonfirefoxx]

@EchelonsBST Oh Mmm thank you for answering and thanks for your time :)

[EchelonsBST]

@dragonfirefoxx no prob...

[MrWajax]

Fascinating stuff!

[PanicButton042]

I read on wikipedia that this planet is probably tidally locked with the star, so the sun-side will be very hot and the night-side will be very cold. Somewhere in between, then, should be a zone along the terminator where the temperature is comfortable. But, questions remain about whether there really is water on the planet, is the atmosphere toxic, etc. Read the wiki article for more info.

[filthyfun]

sweet vid bro.

[Naardis]

Great video as always. I see that you are in the DC area, driving around here during rush hours always puts me in a bad mood.

[PreciseArrow1]

I learn more from you then my teacher. your my hero

[bshieldsbb01]

One of the first terrestrial planets we find and it's smack-dab in the host star's habitable zone. In a Galaxy of 200B stars that's pretty good evidence that our type of life-capable planets are fairly common.

Science FTW!

(ps: why can't we call it a Trekkie M-Class planet, we know we all want to ;P)

[1978atcarroll]

@bshieldsbb01 yes it is. also consider gas giant planets in stars' habitable zones, they could have earth-like satellites.

[tman383]

lol the guy behind him... he gets to be on youtube! :) haha

[Destro7000]

They've shown a CGi image of it with trees and things, haha that's a bit presumptuous isn't it? :D

I like your videos, dude, you seem to really be able to speak out loud about Astronomy quite well.

[VicTheMouth]

Gleise 581 is an interesting star.

[ajr5086]

Wait a red dwarf parent star?

Is this Krypton? Should we be looking for Superman flying around the atmosphere?? Are telescope that powerful?

[subotaj]

Tony you are the best !

[TheTachy0n]

Your multitasking abilities seems worse than your Astronomy knowledge :D

[jozeer88]

Cool ad-libbing, bro.

:)

[BaKer312213]

habital? unlikey, if its year is 40 days it will have 5x greater gravity as the result of centrifugal motion.

geneering required

[CyberNeticRodent]

@BaKer312213 what on earth are you taling about...LOLZ

[TheSheepFactory]

@BaKer312213

Do u have any idea what u just said?

u have no idea what gravity is or what centrifugal motion is.

[waltermh111]

@BaKer312213 i think they mean habitable to life, not necessarily our life.

We are interested in other species, knowing we cant reach that planet even if we wanted to.

[CyberNeticRodent]

@waltermh111 i think you missed the stupidity of his statement.

gravity has nothing to do with Centrifugal force.

[altjff15]

@CyberNeticRodent If my understanding is correct, the planet simply follows the curved spacetime created by the gravitational force of the star. Just as an airplane traveling in an unchanged direction circling the Earth, there is no centrifugal force. The gravity experienced locally on Gliese is relative to its own mass just as on Earth.The only example of centrifugal force affecting gravity i can think of is on Earth at the equator being the most effect and the poles no effect (due to rotation)

[altjff15]

@altjff15 I should clarify that this effect would reduce gravity slightly at the equator by acting as an opposing force not increase.

[Danny77uk]

@BaKer312213 What so the gravity on Pluto is stronger on the dark side?! What rubbish.

[bigbengamer]

It's not Earth sized. It's earth similar. Its three times the size of Earth, lol.

[worbat]

Oh goodness, you look exactly your voice.

So cool, also highly informative!

[quinndiesel1977]

Its a white dwarf

[piranha031091]

@quinndiesel1977 No, it's a red dwarf.

[quinndiesel1977]

@piranha031091 Quite right. Quite right. I was looking at something else earlier and confused the two. Thanks for pointing it out.

[ReasonGuysCopyright]

is it a red dwarf star?

I love red dwarfs :)

[piranha031091]

@ReasonGuysCopyright

watch the video before asking: he says it at 0:38

[halakar82]

@ReasonGuysCopyright Yes, Gilese 581 g is orbiting a red dwarf.

[ReasonGuysCopyright]

@halakar82 hahaha :)

I LOVE red dwarfs :)

They'll be the last stars to fuse in this universe :)

I hope we can tunnel our way out of this universe, before it dies...

[RyuDarragh]

@ReasonGuysCopyright: Red Dwarf, spectral type M3V (pretty orange color, about 31% the size of Sol).

[ReasonGuysCopyright]

@RyuDarragh Hahaha, oddly I'm one of the few people that saying M3V made 100% sense :)

Then again i obsessively researched star classifications to make a game with accurate star color and size within the frequencies of each star type :)

[RyuDarragh]

@ReasonGuysCopyright: Cool :) So many folks think "red" dwarfs are all just 650nm Red or "yellow" dwarfs are all 570nm Yellow. We have a ways to go explaining Black Body radiation curves and spectral lines from various elements and how some stars depend on convection and some on pure gravitational confinement and on and on :P

[ReasonGuysCopyright]

@RyuDarragh

:)

Honestly though, I studied the classification system, because I'm not a fan of it :|

I think that they should classify objects by a logarithmic scale.

I actually made a system, which by using a single letter, you could get everything from a mercury mass, to the most massive known star.

The graph is measured by solar masses and solar radii.

If I had my way, a scale would be made which encompassed all object sized and masses :)

[RyuDarragh]

@ReasonGuysCopyright: Agreed. It's a historical system and is like Linneus and his classification of the phylla of life. Temperature, age, size, mass, composition. Of those, temperature and size are derivable knowing the age, mass and composition. Throw in a few modifiers for weirdness that always happens and it's simple. Properly executed, such a scale would cover all bodies, steller or not (brown dwarfs to asteroids, say). Might limit it to fusion heated bodies, though.

[ReasonGuysCopyright]

@RyuDarragh "such a scale would cover all bodies, steller or not "

EXACTLY!!!

That's what I was trying to do, since of the the lowest mass stars, have more in common with massive planets than a star :)

Like brown dwarfs.

One other thing that would need to be stated is, what degree of rotation the object has. Galaxy, star, planet, moon... you know, revolving around something that is revolving around something that is revolving around...

[RyuDarragh]

@ReasonGuysCopyright: Hmmm (rubbing chin). It's rotation would indeed be a useful bit of data, but how much effect on the fusion reaction would that have? I'd class that as a datum about like direction of travel. It'll affect a star once it becomes a neutron or other collapsed matter object, true enough, but won't affect any planets in orbit or its intrinsic brightness unless I am mistaken here. Would it affect a stars variability? Possibly.

[ReasonGuysCopyright]

@RyuDarragh Hahaha :)

I wasn't suggesting that as a mechanism for looking at stars.

It's an attempt to be able to more clearly define objects, including non-stellar.

So imagine if an object was classified PB3 which could represent a small planet.

Or something like MC1 which could represent a large moon.

These aren't examples from a system I've made, but the idea that more information could be contained is what I'm after.

Standardizing the system like the metric system did :P

[RyuDarragh]

@ReasonGuysCopyright: Start from "Brown Dwarfs", convection based suns barely on the edge of fusion. Use a letter for the designation of type (S = stellar, P = Planet, D = Dwarf Planet, G = Gas Giant), 2 numbers for color in 100K units, letter for main composition, 1 number & letter for age in kilo, mega, giga years. That the idea? If so, rotsa ruck. That would be common sense and history and inertia win again. Imagine all the catalogues that would have to change :P Good idea, but...

[ReasonGuysCopyright]

@RyuDarragh Hahaha,

Not starting from brown dwarfs :|

Starting from the smallest scale, to the largest.

This sounds impossible, but with a logarithmic scale, and 2 characters, a good degree of data compression could be acquired :)

[RyuDarragh]

@ReasonGuysCopyright: Do you want it to be accessible or require some decoding? That's the question. I like simple enough to not requires a book of tables to decode what it means, so 20 or 30 characters at the outside limits and 5 or 6 minimum. Perhaps both at the same time where the first 5 are enough to get what kind of body, composition and so forth and the remainder add details.

[ReasonGuysCopyright]

@RyuDarragh Decoding isn't needed to know how much 25 of something is.

The idea is insanely simple.

1-2 letters denoting it's size, and then something like a number to denote luminosity.

How it could work is simple, the first letter would be a vague representation of it's size, like saying the 10's place first, then if more detailed size is wanted, the second letter would be used.

So you could say A1P or Ac1P

"A" would say it's small, "c" would indicate a more specific size... and so on.

[mnemonic007]

I like girl in the car behind;P

but she quickly disappeard

[sneakerset]

@mnemonic007 Yeah....I checked her out,too. She did look kinda cute.

[JBOTTSIOWA]

I want to move there and make it a crime free planet, send the trash back to Earth

[Oranguice]

as always good vidieo

[Oranguice]

@Oranguice Bad spelling

[Chrisjr2007]

The head of the team,Steven Vogt who discovered that named it 'Zarmina' after his wife.

[ishmaboy]

I still think the artist's interpretation looks a hell of a lot like Reach lol

[dangermous1968]

who named it gliese? what are the inhabitants gonna be called glieselings?

[tyrbolo]

@dangermous1968 The Gliese is a catalog of near stars in this case it has

a number instead of a name

[TehBloodyBrit]

@tyrbolo Gliese is a pretty cool name anyways, they should just stick with that :)

[horny4bears]

WOOT, knew it was time till this came out of the collecting data on planetary bodies outside our solar system.

[ferrett78]

I'm not a fan of the "habitable zone" model. I appreciate that it is a rough guide when looking at exoplanets, but experience in our own solar system should tell us that the range of possible environments for liquid water is far larger than just this zone. Factors such as atmospheric pressure and composition have an effect, as do gravitational tidal forces. Moons such as Enceledus or Europa are well outside the "goldilocks zone", yet could contain more liquid water than Earth

[eskimokid]

@ferrett78 But it gives us a good start doesn't it? Rather than looking randomly at each and every planet!

[ferrett78]

@eskimokid Yeah this is true. Thats why I said it's good as a rough guide :-) Plus the technology isnt really good enough to locate moons yet - only planet-sized objects orbiting the star. It's just that I always have a sense that the whole "habitable zone" idea is over-promoted. Though in terms of exposure, I suppose it's also handy for a "sound bite" for the general public. It always makes me think that there's possibly more liquid water OUTSIDE our own habitable zone than inside though!

[horny4bears]

@ferrett78 *nods* this is just the most easiest means for that search. They havn't stopped or given up any of your points, still think they'll be having a probe attempt to burrow away on one of the moons of Jupiter was it, or Saturn, where evidence for gysers of waters and a active ice sheet has been noted to take place upon.

[ferrett78]

@horny4bears indeed - there are a few programs underway to that end already. It's just a personal thing I have against the idea of putting a boundary on the extent of where liquid water might be found. And it's one Jovian and one Saturnian moon that I mentioned :-)

[Slacktoo]

i hate the fact that its pronounced "glee-suh"...... it should be pronounced gliese, like it looks

[percheron1654]

"why is the sky dark at night"

I hope to god a child asked this...

[theoldbat40]

@percheron1654

Actually, it's a very good question since the stars out there, millions of them, sends out more light than our sun. Check out his video :)

[PurushaDesa]

I wouldn't be surprised if you'd greenscreened up this entire scenario, just as an excuse to talk about more astronomy.

[N1ntenOwned]

I can't wait to hear what the atmosphere is composed of. This is the most exciting news I've ever heard, I've been waiting my whole life for this.

[BrickUnit]

lady in the car behind is like "omg this guy is soo bored he is talking to himself"

[knoose]

"pretty cool" discovery.

Ya, more than just cool...Science lover...

[Malekhit87]

ROOOOOCCCCKIINNNN !!!!!!!!!!!!!!!!!!!!!!!!!!

when I've heard about it I was ok so when we are going there :)

Ps. tdarnell can you make more videos about space :)

[ExtremeSupremeX]

Lol driving a car

[ExtremeSupremeX]

Lets go there to live, or is someone else already there?

[terr547]

Yeaaaa!!!!!!!!!!!!!!! :D

[KatComixProductions]

I was excited about that! Maybe we'll find some neat new elements.

[novelist10]

i think this is one of the most exciting discoveries in astronomy in recent memory.

[komikero]

If the Earth revolved around the sun every 40 days, would it be something we would actually feel?

[VousPouvezFaireMieux]

I know we won't get there in my lifetime, but I think it's neat to know that there's another that probably already has lifeforms and who knows? Maybe it's own civilizations?

[Zach1O8]

Thanks for keeping the videos coming, I had heard about the planet's discovery but I didn't know the details until now