Turns Out, the Sun Is... Pretty Chill | SciShow News
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- Опубликовано: 28 сен 2024
- Life on Earth depends on the steady nature of our star, and an international team of scientists searched thousands of other stars to try to find out if the sun has always been as consistent as it is now. And According to a study published Monday in Nature Astronomy, scientists searching for habitable exoplanets should maybe be looking in some more exotic places.
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Sources:
Sun paper: science.scienc...
Microbes paper: www.nature.com...
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arxiv.org/abs/...
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astrobiology.n...
Images:
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• NASA | Alien Atmospheres
• The Dynamic Solar Magn...
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The irony, measuring a star's life in "years" which is a cyclical phenomenon it actually creates.
It could be argued that Earth is just as important in making years
Actually I would say that neither Earth, nor its star creates a year. A year is just a human construct based on the orbital period for our home planet because it is what we know best.
Cows rarely fart. Because of their multichambered stomach, they generally burp CH4.
Some cows fart consistently, due to forced stomach gas retention and a penchant for booty proclivity.
There has to be a trump joke in there somewhere
3:02 "Our sun is usually quiet"
_A star constantly exploding with more power than Humanity has ever used but denied completion due to it being too heavy to get out of its own way._
Quiet, he says.
Well look, compared to its bratty stellar siblings it's pretty quiet. Have you *heard* about the tantrums they throw?
Betelgeuse is that one kid who won't shut up about thier light up sneakers. They're Brightnsometimes, Dim others, And you can only Stare so long before they blow up about it.
You all are *so* fun lmao.
The sun always did strike me as the 'slow burn' type.
10 billion long?
i heard if you blow on the sun it just reignites like those trick candles
I love your user name and icon.
Yeah which star struck you like a 'fast burn' star exactly ?
@@Blubb5000 all of us are addicted to clicking on it.
I can't wait for James Webb to launch in 2047
Optimistic
Sorry, they just pushed it to 2058
2077..!
Thank you for the much needed laugh. See you all in 2094 for the launch.
2110 looks like a Tuesday
*finds a planet overgrown with E. coli*
Scientists: ok then
Everyone else: E. coli is a alien TRYING TO KILL US ALL
Wait till you find the one with the huge yeast infestation.
I hear that _E. coli_ has already colonized Uranus.
@@TheRogueWolf And they are studying a lot of emissions from there at the moment as well.
@@TheRogueWolf Uranus is a black hole.
@@sk8drewsk8 Wrong grammar.. What you actually mean to say is: "There is a black hole in Uranus".
wait, it took us this far to do a bottle test with pure hydrogen?
even though we knew oxygen is a by-product of life, not the other way around? (check pbs eons)
Oh and it isnt JUST a by-product. Stars produce it and eject it during supernovas. Check out PBS Space Time and Sci Show Space.
@@anarchyantz1564 there's the difference between having the element O at all and having it as dioxygen O2 gas. having water means having O, but it did take life on our planet to make a bunch of O2.
This was exactly my reaction too. Not even from an astrobiology standpoint, just from a microbiology one I'm amazed that these results weren't already well known.
I get the feeling that SciShow emphasised the wrong conclusion. I think it was already known they can reproduce in zero oxygen, but not already known that they can survive in pure helium or hydrogen etc.
@@a2e5 wait what? I really dont think so, if i remember correctly from chemistry class oxygen radicals are highly reactive and will bind as soon as they get a chance (that means either with another oxygen or different suitable atom) same as with hydrogen radicals. Correct me if iam wrong tho
Sun: "So, hey, Earth... sunspot and chill?"
Thank you for making my life brighter Scishow!
Space news always helps me chill out!
Sun be like:
hey bro i gotchu
The Sun is like a middle age person. Over the young and overly energetic years, but not old enough to have issues and break downs we can have in our older years. Yep, she's in the Goldie lock phase. Have plenty of experience, but still young enough to enjoy it. 😘(I'm now middle age, so I hope that's true) 😆
You look great!
*How did you not mention the suns corona layer*
I mean this was the perfect opportunity.
ever heard of a break?
@@ogorangeduck Its completely unrelated to covid, so it's still a break.
groan
@@ogorangeduck ever heard of an outbreak?
Very well produced and narrated so keep them coming our way!
*Shows an orange Sun*
Me: "Impossible"
Life on the sun: Its pretty chill...
Life on The Earth: Get me out of here!!!
*Insert Sarcasm Here*
Inserting *Insert sarcasm here* kinda renders your initial sarcastic comment (a good one) moot.
Why didn't you just add more at the start? You had the room...
*Jupitonian Prime Minister to Saturnian Emperor:* we gotta split, dude.... the Earthlings are onto us
Chill suns are needed for life to begin
Lots of studies about solar isotopes showing big activity from the sun in the past at regular intervals. It fried all the telegraph wires in 1859 and that was a tiny eruption, nothing like the power shown in the past.
Imagine if the first intelligent alien life we encountered was evolved e coli.
I love Hank like a mother pheasant pluckier.
So interesting!
When a small star is drained by a larger star.
What happens when it's drained to the core. Would the larger star be orbited by a white dwarf
Yeah, then as the other star gets old the white dwarf starts eating the stolen mass off of it
This depends how old the small star is. If it's at the end of its life then a hot, dense core would be expected, however if the star is quite small (like a red dwarf) or young then it should become 'fully convective' as it loses mass; its core would dissolve and the entire star could be drained away. (Though more likely the two stars would merge first.)
@@garethdean6382 maybe that happened to our sun twin
No news on the recent study about the estimated star birth rate and the death of the universe?
even kepler has a flaw of not being able to estimate the rotation periods of those other stars
Sun just taking a smooth and slow hit from the bong.
PPP
Given the number of planets in the universe, the number of those close enough to their star to have a reasonably habitable climate, those with enough mass to have an atmosphere, those with an atmosphere we KNOW can contain life, and the various number of species that can exist in different climate conditions on Earth, it's practically a forgone conclusion that there has to be at least a stone age level intelligent species out there just waiting to be found. These new experiments just show that it's even more likely that one of those species will be found within my lifetime.
you left out the time factor
This may unfortunately not be as easy as you think.
70% of stars are red dwarfs which puts a planet in the habitable zone also in the tidally locked zone. Of the remaining 30% there are red and blue giants both of which are not "chill" like our star and probably not suitable for life.
I honestly can not find a percentage or estimated number of sun like stars in our galaxy but even if its 20% then half of those are in binary star systems which probably are also not suitable for life to evolve.
10% of 400 Billion stars is still 40 billion stars but most of those will naturally be in the denser populated core but the density causes much more cosmic radiation and there will be much more rogue planets and stars drifting around because they are so close even if they dont pass through a solar system just passing close would be enough to disrupt the orbits of worlds or meteors so we are left with the stars in just the spiral arms.
Which is still an impressive number of stars, but Kepler looked at just under 2500 stars with planets and none of them, zero were earth sized planets in the Goldilocks zone around a sun like star. As a guesstimate of 4 billion stars that match the criteria above in the spiral arms and a guess of 1 out of 5000 has an earth sized planet in the Goldilocks zone that's about 800,000 earthlike planets spread around the spirals.
Now consider the water we have came from comets during earth's early days, but if we had too much more we would have no dry land. If it goes the other way then there is too much desert and it's in the water that is the laboratory for creating life.
Then the climate, the planet could end up with a runaway greenhouse such as Venus or it could be ice ball Earth like has happened at least twice.
So 1/3 of the 800,000 get the right amount of water, and one third of those get a decent climate you have roughly 90,000 acceptable planets (assuming 1 per star)
90,000 seems still a workable number until you put in the scope of the size of the galaxy. If the galaxy were scaled down to where our sun was the size of a printed dot on an i then the next closest star to Earth is 4 light years but on this scale it would be about 3 inches away. We could maybe build a spaceship to cross that three inches, but that would still take 100 years with our current technology.
Our galaxy at this scale is about the size of the continental US, and spread around the circumference of the entire US are those 90,000 dots. At 100 years per 3 inches.
So I think all of us alive today are out of luck for finding ET.
Cool.
I guess that the drawings of the Sun with a smiley face 🌞 are accurate, then.
As accurate as the color is. 🤓
Kepler's approach via polyhedra will be the solution to finding habitable exoplanets (He's really that good of an accountant).
We're all just a bunch of shooting stars in a universal gun range.
I thought it was the 11 year cycle of the influence of Venus, Earth, and Jupiter lining up. Or that's the theory I just heard recently.
Hot is the new chill
Soooo glad it’s Hank. Anytime it’s that dude who looks like Tommy from Shawshank, I end it. No petty downvote, I just can’t take him. The bald dude and little Lulu are also awesome but Hank is the shiznik.
No need to worry about the sun anytime soon. It’s going into an ultra quiet period known as a solar minimum or grand solar solar minimum depending how long it lasts. Cycle 25 quiet as a mouse.
I respect that Jurassic Park reference
Can't wait for that damn telescope
KEPLER IS AWESOME
I've been watching Sci Show Space for years. I liked their videos. That is why I decided to create my own sci-fi/futurist Channel. Sci Show Space, if you are interested, would you like to have a collaboration? I would love to share my dreams for humanity with a wider audience! 👍🙂
Science is scienterrific
Go go Sci Show
Sooo,Why Has
Our Star Looked Like a Magnetar Lately,and Whats The 2nd Spherical Object Up There With It?
Link?
It is not a ball of gas. It is a miasma of incandescent plasma.
Can you cover Solar Minimum? There's a news circulating in FB about the negative effects of it.
Don't get your science from Facebook unless it's from an actual scientific group.
Like CDC, CERN, and "research colleges".
The "Solar minimum" is part of an 11 year cycle. I've lived through 4 such cycles. Can't say anything bad has happened yet......
Now, if your FB source is actually talking about a "Grand minimum" that's a different thing.
But, the sun's output has been decreasing for decades and the planets temperature keeps right on climbing higher.
skepticalscience.com/solar-activity-sunspots-global-warming.htm
Can I just say, as a life-long wanna-be geek and lazy astronomer, this was *Really Cool*
our favorite ball of *plasma*
What if the solution to the fermi paradox is that stars periodically purge life?
That could be part of the answer.
Ours hasn't done so yet.
And if we got rid of the concept of money, we do actually have the technology to permanently leave this planet, and solar system.
It's just far too expensive to do with our current financial system.
So if the sun wipes us out in the future, it's because we failed to do what we are technologically capable of, because of money.
Graham hancock: *Sweats profusely*
I went to 3186, and apparently, the James Webb Space Telescope was as never launched. They did however spend $170 Billion for development.
Oh shut up.
IF you understand science you'd know they have kicked ass making JWST.
NASA has invented half a dozen *entirely new* technologies, AND progressed them to the point that they're ready for use in space (JWST is actually built and is being tested now).
It took 11 years to make the Blu-ray.
And that includes the facts that we already had blue lasers, we already had led lasers, and we already had DVD players, and Blu-ray is literally nothing but a DVD player with a narrower laser beam.... 11 years.
But hey, it took 80 years from the invention of the refrigerator, till you could actually buy one in a store.......
Aint sun the best :P
Time to party like it's 1187BC!
Earth is evolved from sun but still call sun(SON)
E. coli... the hobby geneticists best friend.
Is this some kind of Mr.Freeze pun?
TALK ABOUT C/2020 F8 (SWAN)
👍
Let's talk the age of the sun. All stars start at the center of the Galaxy. Because of the rotation of the star at the center of Galaxy,a new star begins its journey revolving around the star. Its journey is much like following the grooves of a record, with each revolution being further away. So, how long did it take for our sun to get where it is? Well, the distance from the center to our place in the Galaxy is about 27000 light years or 5.879 x 10 to the 12th power. Let's say that the distance a star moves away from the center star is one diameter of the star. Our sun's diameter is 864938 miles, so it would take 6.797 x 10 to the 10th power orbits. Now let's say that the average length of time for each orbit is one million years, that would make our sun 6.797 x 10 to the 12th power years old.
It is nice to have some space news. All this about the virus is old.
Great, BUT... in a Hydrogen-Rich-Atmosphere planet, bacteria might not have access to the nutrients of the "Growth Medium". They should try leaving only pure compounds needed by the bacteria, like Nitrogen, Carbon, Phosphorus, etc.
the lighting...it hurts
Nice. So they tell their friends, "Yeah, i am the world's leading Fartologist."
Which planet are you from??
If you live in New Jersey, you may still see a wasteland when you look outside. Its ok: The sun is still here! You're just in New Jersey.
So that's where the yeast went.
The sun is "Cool" then. 😎
Woo hoo I'm here @ 136 views keep up the great work
After assuming life needs oxygen for how many hundred years someone finally decided to test it?
All videos about the sun should be 8 minutes and 20 seconds. Good video though :)
Or they could get real fancy and time the vids to the exact length of time it takes light to reach Earth when the vid was made.
astrobiology has to be the best to be in, you can pontificate anything and there's no way to actually check it.
And yet, that's exactly what these 'pontifications' propose doing. Amazing isn't it?
Did Hank, of all people, just refer to the sun as a "ball of gas"??
Seems to fit the actual definition of "gas".
"a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid)."
I'm still gonna build a bunker
Hey! The sun is still there. Wasn't sure for a few months, but the clouds finally parted.
"Ball of gas!?" For shame, Hank.
ruclips.net/video/sLkGSV9WDMA/видео.html
What if the planet Neptune was replaced by another sun. Why do we over look binary systems. Even the ropes like tatoween or thra or Zander. Have much larger habitable zones . Plus life adapt to shift conditions
That could screw up our solar system's current orbits.
To be a functioning star, it would have to be a bit (20% ?) bigger than Jupiter.
It would be nice to have a 2nd star though, ~ would probably look really good.
@@massimookissed1023 not if it's always been that way I was making analogy based on equipment distance
When you have two big bodies orbiting they make things a lot less stable for anything else in the system. And planets become a lot harder to detect too. At present we're focusing on what we best understand.
rare earth theorists are gonna love this
Yeah...because I'm going to believe anything now about space.
Can we acknowledge the irony of the Sun wearing sunglasses?
Seed Jupiter.
Giant ball of gas? Hank, you should know better, since you like They Might Be Giants. The Sun is a miasma of incandescent plasma! (I'm just being silly)
Why is the sun called the sun? Who named it and when?
Why? What did you want to call it?
Etymology is the study of the history of words. If you search that word with any other word you can usually find a history. The following is for the word "sun" but as you can see you may have to look up some of its root words or variations.
Old English sunne "the sun," from Proto-Germanic *sunno (source also of Old Norse, Old Saxon, Old High German sunna, Middle Dutch sonne, Dutch zon, German Sonne, Gothic sunno "the sun"), from PIE *s(u)wen-, alternative form of root *sawel- "the sun."
But the sun is getting stronger. Apollo is lifting weights and feeding his horses well. I know cause he accidentally worked out too hard and almost passed out one day, causing a huge hole in the ozone. Anyone else wanna bring back the Greek pantheon with me? ... But the birds are still not real.
The sun is white hot now, not the cooler yellow it used to be 20 years ago. Chill?
It was hotter 20 years ago.
The Suns been on a several decades long cooling trend.
But the Earth is still getting hotter......
Hey
Why didn't they test CO2, Hydrogen sulphide, Methane, Chlorine, and Sodium atmospheres?
Probably because sodium gas, hydrogen sulphide and chlorine are a nightmare to work with.
That doesn't surprise me about E. Coli, it can survive in our guts which is anaerobic.
I hate to be this guy (do I tho?) but the farting cow clipart is inaccurate. Most of the methane produced by cows is belched up. 🤔
A stars brightness is not depending on the rotation.
How long will it take till the electric sun model reaches the world....
Shows like this are kinda sad to watch.
instead of worry about if there are microbes on other planets i would like to see us seed life. sending space ships with different life that would most likely survive. Also special mission with the goal of terraforming Venus
That's because we are in a grand solar minimum.
Not yet.....
And the sun's been on a several decades long cooling spell and the Earth is still getting hotter.
Hold out your hand, look in the palm, that's what we know, look to the clear night sky, times that by a billion, that's what there is to learn!
B)
me, living in a tropical Asian country:
*b r u h*
Wait...the suns a ball of plasma...not gas. They are very different states of matter. Please keep the science accurate and not confuse young students and old timers
Just assumptions ... They dont actually know
hack
To be honest, only the sun has an orbital body with weed on it :)
Scientists disagree.
Our star is chill: So what you’re saying is we don’t know.
Pp
What if we just shoot a spacecraft full of e coli into Jupiter, then after millions of years we'd have a bunch of weird little jupiter-native bacteria on there
How will you check on it's progress ?
@@christelheadington1136 Stick cameras around?
Scientists were able to track activity for thousands of years ... Such a bs
They did the same sort of thing other scientists did to dino fossils. We find "something" is there and we just need the best theory that fit the conditions like what it is, where is it from, why do it there, etc.