We spent billions, we innovated, we sacrificed, we studied, we unraveled the mysteries of the universe...so that we can take baby pictures of stars. And I'm here for it.
Finally someone who explained how the difference between a red-shifted object and an actual red object is made! Also the pool analogy was great to illustrate how the light from this object got magnified so much :) thanks for the great content!
Loved the history/etymology to tag the name's origins. As a book nerd and Tolkien fiend, I was hoping you'd make mention of his genius lvl literary research
I was missing a comment to the extent of "see, even Silmarils are subject to red shift". And that this allows us to calculate how long ago the (end of the) First Age was! 😆
Thank you for these great explanations! Interesting, redshift + hydrogen absorption! I like especially the analogy with caustics at the bottom pf a pool for the gravitational lensing.
Agree with you 1000%. Great to hear how some of the sleuthing is figured out. Also, Dr Becky, i am very impressed by the spectrum of fingernail polish you're sporting there!! :)
This is hands down the very best channel on TH-cam! Dr. Becky is super smart and a great educator. Least important, but hard to ignore, she is very easy on the eyes!
This video made me see the universe in a very different way than I ever have before. It's so easy to take the cosmos for granted, but it is absolutely astonishing that it even exists.
That is so amazing that instruments and telescopes are that sensitive to detect such minute changes in the red shifted light spectrum. Simply AMAZING!!
I have been a fan of many physicists over the years, from Galileo And Newton, through Planck, Einstien and Feynman, to Hawking and Hossenfelder. You are, I think, the first one to describe gravitational lensing in terms of the bottom of a wine glass.
Next time my bartender tries to get me to stop gazing into my wine glass for hours and just go home, I'll tell him I'm not really drunk -- I'm just working on my PhD thesis about gravitational lensing.
@@davidanderson_surrey_bc If I'm not mistaken, I may have just seen the big bang in my brandy snifter in a gravitational lensing miracle. Or maybe it was just too much brandy! Seriously though, I agree, thankfully we have Dr. Becky to make physics fun for us !!
Dr Becky’s formula for successful astrophysics-ing: 1. Get excited over fancy new cutting edge telescopes. 2. Get excited over other astrophysicists work. 3. Get excited over other astrophysicists getting time with new cutting edge telescopes, because of their aforementioned work. And finally 4. Share your infectious excitement with the world through TH-cam! This is a great formula, please keep it up!
Absolutely in love with your content! Space has been one of my biggest fascination since I was a child and while I know astrophysics is way above my intelligence. Yet these videos are exactly what I need to see about fun news and an excited scientist! Keep all the good work up and I hope you enjoy making this as much as I like watching it. On to hopefully many more years
I'm glad you covered this, too, Dr. Becky! I've seen videos from a few of my other favorite science communicators, too (like Anton) and you each bring your unique perspectives into the subject. It's amazing that multiple videos about the very same individual star can each be so interesting! Thank you for what you do, Dr. Becky. ❤❤🖖🏼🙂👍🏼
I've been following you FOREVER. and I've said it before. .... forgive the repeat. but, that being said. THANK YOU SO MUCH DR BECKY! You put things in laymen terms and really say things succinctly but accurately. Not an easy task in any terms. you're talking about life , love, the universe, EVERYTHING very hard to put in laymen terms. Thank you DR BECKY!
This was a very dense and well structured episode. I learned a lot of science just to get to the explanation of how this star was found, and it was great journey And destination!
The fact Dr. Becky can completely lose herself, nerding out about this stuff, and still manage to put it all in terms I can understand, is truly an accomplishment.
How you even begin to discover and understand this sort of stuff blows my mind. That a human being (or group of human beings) can be that much smarter than me both scares and amazes me.
As a life-long Tolkien fan and having scoured every word he ever wrote, this makes me happy. Also glad you properly explained the etymology so thoroughly too =) Usually when someone touches on something like that they leave out information that I wish they wouldn't but you nailed it. Very concisely too, might I add.
Very interesting video Dr. Becky! Still trying to wrap my head around 12.9 Billion Light Years.! JRR Tolkien would have surely approved of the name "Earendel" for that Star! LOTR is definitely one of the greatest fantasy series of books ever written! I read those books way back in 1969 and try to re-read them every few years. 👍👍😉😉
Tbh, I think by the time Brandon Sanderson gets done, we may have a new title winner, but I don't think he's quite there yet. But if he keeps this pace and track record... Anyway, yes, I definitely approve of Earendel. Nice Tolkein tangent.
Love all the information you give and how you break it down so its easier to understand. Lol I adore the bloopers and think it makes your humility and personality shine through
In addition to being an awesome astrophysicist you've got a great sense of humor that I appreciate! The combination is quite engaging! Thanks Dr Becky for taking the time out of your busy schedule (UK pronunciation 😁) to help us make sense of it all!
This was very enlightening, pun intended. I reasoned they would be able to model the observed distortion but hearing you explain that they were able to conclude it's most likely a single star because it has to be smaller than 2 ly across made so much sense. Thanks for another great video!
Thank u, Dr Becky, for this erudite explanation on Earendel so laymen like me could get demystified about it. For ex, I was wondering how Earendel could be "oldest" when there is the Methuselah star 😊. Now I gather that this is the "farthest" star we are seeing, and therefore as it was just under a Byo after BB.
Thank you for this! When I heard about this discovery I assumed its stellar nature was confirmed by a spectrum. To hear that this assumption is based on the estimated size is a bit of a disappointment - I was hoping this meant we had a spectrum for a population 3 star. Can't wait for JWST to take a closer look.
@@DrBecky I'm wondering how long the star will remain in that super exact position that has it so magnified. Even tiny movements of the lensing galaxy would disrupt the perfect alignment. I bet it lasts multiple years, but, 100 years? 1000 years?
Some interesting points I've not come across at other sources such as Earendel being displayed only once and specially about the shifting absorption line filtering out 'all' wavelengths beyond the hydrogen line due to redshift. Never really thought about that filter effect. Have to let that sink in and whether that is the answer to my question as redshift alone is imho not enough to determine the distance. Imho redshift just represents the distance the light has traveled through expanding space, but as a lens may cause refraction that's not necessarily in a straight line.
Given the extreme magnification factor to even be able to observe this star, by the time we are able to observe it with Webb, wouldn't its lateral motion potentially take it out of the lens sweet spot where we might not be able to see it anymore?
As I've understand it there is a lot of uncertainty about this, but the consensus seems to be that we're most likely able to see it for several years, up to a few decades.
@Bobb Grimley This has nothing to do with the observational technique, as far as I known gravitational lensing is pretty well understood though without doubt more can be learned. This is about the relative movement of the star, the lens and earth that make this observation possible. If the alignment changes too much due to the relative movements through space the star just moves out of the field of view from our perspective. Without doubt others will get discovered, but the window of opportunity to study this specific star is limited.
@@DJMattEmpathy SN UDS10Wil (the one shown in the video) is the most distant supernova of the type Ia. But there are other types of supernovae (like type II), and there are supernovae where we don't know what type they belong to. In the case of SN 1000+0216, we know that it is more distant than the other one, but we don't know its specific type.
I think it's more accurate to say that the light Hubble saw left Earendel 12.9 billion years ago, when the universe was 7% of its current age. But right now Earendel is actually 28 billion light years away from us because the universe has expanded since the light we see left Earendel.
@@DrBecky "Hubble Captures Earliest Star Light Ever Seen By Humans - Astronomers Giddy" or "Astronomers Ga-Ga Over Star Light From Universe's Infant Years Seen By Hubble" (FYI, I'm giddy over your channel.)
A great video, Becky. I was wondering how they identified the star and analysed its age. I assume, of course, that it's unlikely to still be shining where it actually is?
Its definitely long dead none of the types of possible stars they suggest it could be live more than a few hundred million years at the oldest and thus this source is long gone. That is unless of course it is an accreting compact object rather than a star? I don't know if they ruled out that latter possibility after all.
We don’t know the age of the star. Again, a spectrum from JWST should tell us. Stars of this mass usually live about a billion years or so, it has gone supernova a long time ago
I am like that. You need to watch one of her videos on how to steel the Moon. It was done on April 1st and she makes a rotten lier and criminal. It was about using an electrical cable wraped around the Moon can you steel it and pull it to the Earth. I never saw algebra written before this. I only do basic math like 76 time 76 50 + 25+ 1 76 times 50 = 3,800 + 25 * 76 = 1900 plus 76 which is one percent of 7,600 5,776 is the answer.
Thanks Dr Becky. Astrophysics with such a wonderful educator as yourself is so enjoyable. Keep up the Great work. 🤭 Christine★McVie and Stevie★Nicks, are also wonderful Stars 🙏🏼🕊️🤍
I really hope that the James webb telescope will show us that the universe is significantly older than our galaxy. Showing that our galaxy is considered relatively young.
Using a galaxy as a magnifying glass... This is the most amazing story I have heard in a long time. And Dr. Becky is bringing the exitment across so well, I am simply delighted.
Because we can clearly see that the universe is expanding. If it really began as a singularity that erupted in the "Big Bang", they we can backtrack from today to when it began and then determine how large the universe must be in order for what we currently see, to exist at all. Kinda like someone tells you that they have been travelling at 100 kmh for 10 hours. So THAT tells you that they came from a distance (by road) of 1000 km away. So the land that they have been travelling over must be at least that large.
Great video! I'll be watching for the follow up when the new research comes out. Caught the little bit of Everywhere at the end of the bloopers. The awesome thing about space is that it's everywhere.
Your explanations of complex physics in your videos gets better by the episode, I will totally shamelessly take them to explain these phenomenon to others ;) thank you again for making these topics fun and easy to understand...
Those were some super useful graphics, which were totally missing from the regular new stories. Thank you!!!! And I'm glad to know that there are people in the world who have the same excitement about this kind of stuff as I do. And another Tolkien fan too. I loved that "tangent." Anyway, I don't have the time to delve into the scientific papers on every thing, so I appreciate your covering this. It made my morning.
I think this is an important correction: The star is actually not just 12.9 billion light years distant, at least not in the way we normally mean. The NASA article clearly states several times that the light received was 12.9 billion years old, which means the light-travel distance is 12.9 billion light years, but the comoving distance should be much greater. If you read the article (linked below), you'll see that they never actually state the distance at all. They do give the redshift z = 6.2, which is consistent with a wide range of comoving distances depending on H(ζ) for 0 < ζ < z ≈ 6.2 and on the exact value of z. So that's probably why they don't actually give an estimate. But regardless, it has to be significantly more than 12.9 Gly. As an example, if you plug z = 6.2 into this calculator from UCLA, it gives you a comoving distance of 27.8 Gly. NASA press release: nasa.gov/feature/goddard/2022/record-broken-hubble-spots-farthest-star-ever-seen Calculator: astro.ucla.edu/~wright/CosmoCalc.html
From memory, the star of Earendil, was named after Earendil the mariner. He was a half Elf, that sailed west to Valinor (lands of the gods) with a Silmaril made by Feanor no less. The gods then sent the Silmaril to travel across the sky for all time.
@@TurinTuramber Yes, Earendil was the son of Idril (elf) and Tuor (man). Of course he married Elwing, granddaughter of Luthien (elf/maiar) and Beren (man). Their children were Elrond, who everybody knows about, and Elros, who chose to be a mortal man and was first king of Numenor.
This was phenomenal, thank you! I had seen this in the news, but this was so much more detailed, I truly appreciate it. And I am so excited for Webb’s observations! What a stroke of luck that this was discovered just in time for Webb’s commissioning.
It is just beyond amazing that we get to see a demo of the amazing abilities of the James Webb right off the start on such a potentially unbelievably important discovery! So exciting
Gotta love when such a hyper-intelligent person capable of understanding phenomena like this one gets so passionate and excited and capable of explaining it to a ditch-digger... Thank you so much for the amazing ride, Dr. Becky!
Great job unpacking the significance of this exciting find. I just wish we got to see you drain your wine glass prior to the excellent demonstration of light bending and/or fill it back up for sipping afterward. Stay amazing!!!
Thank you. I really enjoy your presentations. Much floats over my head, but some of it sticks..WOW. It will be interesting to see what is learned from JSWT.
Fantastic video, very well-explained and easy to follow, and full of your usual infectious enthusiasm! Please give us an update when JWST gets around to observing the star!
You are a very bright person but it is so cool that we regular folks can understand what you are talking about. Thanks again. Love to buy you a beer in pub if you ever get to the U.S.
Dr Becky Smethurst is THE best astrophysicist EVER. You explain everything in plain English for us non astrophysicists, but who love all things about the cosmos 💓👩🚀👩🚀 💓
I’m from Lancashire. Across the hills from Yorkshire where Sean Bean is from who played Ned Stark - the other actors of the Stark family based their accents off his
Thank you this video. This is the best explanation I have seen for how the age of stars is determined. I love your videos, and your infectious enthusiasm.
Thank you, I love how you explain complex things like I am a 5 year old. Makes sense after you explain it. And to bring Tolkien into the naming of the star, brilliant and entertaining..
The thing I find most fascinating is, if this star truly does prove to be at 12.9 Billion light years away and also is limited to just one star.. And this is what I find most mindblowing of them all is. The likelihood of that star still being there, is extremely remote. I wont say impossible because nothing is impossible, just improbable until proven otherwise. How many wonderful and beautiful objects can we see in our skies now. That if we were where they are. They would no longer be there but long gone. This is what most people forget.... our eyes detect light which allows our brains to put that into images we can understand. But light takes time to travel even a short distance. We cannot ever see anything in real time. But, only in the past. Nothing we ever see is the present....... a scary but also fascinating thought. A great video Dr Becky. Thank you :)
Dr. Becky... I'm not an astrophysicist nor am I a cosmologist; and yet I am stoked for the science that's being done. I love it. The JWST is going to be legendary. So here's a question I've always had. These observations are of the past; were observing where these galaxies once were. My question is always where are these galaxies, where are these stars now. Present tense not where they were.
This star is dead. It will have gone supernova around 11.9 billion years ago but we’re still receiving the light from it now. The galaxy it’s in will still exist but look very different from what it did back then. It will look similar to what we see today in Andromeda or M87 depending on how it has evolved. We can’t know for sure for that *specific* galaxy but that is how we know how the universe and galaxies have evolved by comparing then to now
I saw it in the news and thought: I'll wait for Dr. Becky. 😀
“Earendel, our most beloved star!” 🌟 So happy!
We spent billions, we innovated, we sacrificed, we studied, we unraveled the mysteries of the universe...so that we can take baby pictures of stars. And I'm here for it.
Me too!!
What would the alternative be? More billions for wars and tax cuts for the ultra wealthy??
If you thought stars were cool, wait 'til you see baby stars.
Brilliant! Thanks for the lekker laugh. 🤣 'Lekker' is Afrikaans for 'really good' or 'yummy', depending on context. 🇿🇦
But most importantly:
Baby spectogramms
@@vigilantcosmicpenguin8721 But watch out for the dark matter they burp.
Finally someone who explained how the difference between a red-shifted object and an actual red object is made! Also the pool analogy was great to illustrate how the light from this object got magnified so much :) thanks for the great content!
Loved the history/etymology to tag the name's origins. As a book nerd and Tolkien fiend, I was hoping you'd make mention of his genius lvl literary research
Better well stolen, than poorly conceived 😜
Nice one, Victor!
Oh, and it goes without saying but great content from the physics angle too, Dr.!
I was missing a comment to the extent of "see, even Silmarils are subject to red shift". And that this allows us to calculate how long ago the (end of the) First Age was! 😆
What? Naming it Ernie from Sesame Street is cool. There you go! Genius LVL experience. 🤣🤣🤣🤣🍻
@@michaelhoffmann2891 😂🤣😂
Thank you for these great explanations! Interesting, redshift + hydrogen absorption!
I like especially the analogy with caustics at the bottom pf a pool for the gravitational lensing.
Agree with you 1000%. Great to hear how some of the sleuthing is figured out.
Also, Dr Becky, i am very impressed by the spectrum of fingernail polish you're sporting there!! :)
Dr. Becky, Earendel, Tolkien and Fleetwood Mac all in the same video, it gets better and better.
This is hands down the very best channel on TH-cam! Dr. Becky is super smart and a great educator. Least important, but hard to ignore, she is very easy on the eyes!
This video made me see the universe in a very different way than I ever have before. It's so easy to take the cosmos for granted, but it is absolutely astonishing that it even exists.
That is so amazing that instruments and telescopes are that sensitive to detect such minute changes in the red shifted light spectrum. Simply AMAZING!!
9:42 " G star ", astronomy has style😅😅🤣🤣
Great name!😉
I have been a fan of many physicists over the years, from Galileo And Newton, through Planck, Einstien and Feynman, to Hawking and Hossenfelder.
You are, I think, the first one to describe gravitational lensing in terms of the bottom of a wine glass.
Next time my bartender tries to get me to stop gazing into my wine glass for hours and just go home, I'll tell him I'm not really drunk -- I'm just working on my PhD thesis about gravitational lensing.
@@davidanderson_surrey_bc If I'm not mistaken, I may have just seen the big bang in my brandy snifter in a gravitational lensing miracle. Or maybe it was just too much brandy! Seriously though, I agree, thankfully we have Dr. Becky to make physics fun for us !!
You forgot James Clerk Maxwell, Michael Faraday, these giants must be there.
Hossen----what??? lolllll... have some dignity and perspective ffs ...
Dr Becky’s formula for successful astrophysics-ing: 1. Get excited over fancy new cutting edge telescopes. 2. Get excited over other astrophysicists work. 3. Get excited over other astrophysicists getting time with new cutting edge telescopes, because of their aforementioned work. And finally 4. Share your infectious excitement with the world through TH-cam! This is a great formula, please keep it up!
As a massive Tolkien nerd this got me so excited when I saw what they'd named it. This is the life I lead 😂
Absolutely in love with your content! Space has been one of my biggest fascination since I was a child and while I know astrophysics is way above my intelligence. Yet these videos are exactly what I need to see about fun news and an excited scientist! Keep all the good work up and I hope you enjoy making this as much as I like watching it. On to hopefully many more years
I'm glad you covered this, too, Dr. Becky! I've seen videos from a few of my other favorite science communicators, too (like Anton) and you each bring your unique perspectives into the subject. It's amazing that multiple videos about the very same individual star can each be so interesting!
Thank you for what you do, Dr. Becky. ❤❤🖖🏼🙂👍🏼
I've been following you FOREVER. and I've said it before. .... forgive the repeat. but, that being said. THANK YOU SO MUCH DR BECKY! You put things in laymen terms and really say things succinctly but accurately. Not an easy task in any terms. you're talking about life , love, the universe, EVERYTHING very hard to put in laymen terms. Thank you DR BECKY!
This was a very dense and well structured episode. I learned a lot of science just to get to the explanation of how this star was found, and it was great journey And destination!
The fact Dr. Becky can completely lose herself, nerding out about this stuff, and still manage to put it all in terms I can understand, is truly an accomplishment.
How you even begin to discover and understand this sort of stuff blows my mind. That a human being (or group of human beings) can be that much smarter than me both scares and amazes me.
As a life-long Tolkien fan and having scoured every word he ever wrote, this makes me happy. Also glad you properly explained the etymology so thoroughly too =) Usually when someone touches on something like that they leave out information that I wish they wouldn't but you nailed it. Very concisely too, might I add.
Very interesting video Dr. Becky! Still trying to wrap my head around 12.9 Billion Light Years.! JRR Tolkien would have surely approved of the name "Earendel" for that Star! LOTR is definitely one of the greatest fantasy series of books ever written! I read those books way back in 1969 and try to re-read them every few years. 👍👍😉😉
Tbh, I think by the time Brandon Sanderson gets done, we may have a new title winner, but I don't think he's quite there yet. But if he keeps this pace and track record...
Anyway, yes, I definitely approve of Earendel. Nice Tolkein tangent.
@@adrianbundy3249 I agree there. Sanderson is one hell of an active author.
Love all the information you give and how you break it down so its easier to understand. Lol I adore the bloopers and think it makes your humility and personality shine through
I found the swimming pool analogy very helpful (and beautiful)! Thank you so much as always for your work, Dr. Becky! Absolutely adore these videos.
Thanks for the shout-out, Dr!
Being very interested in Anglo-Saxon history and language, I do really like this star already :)
In addition to being an awesome astrophysicist you've got a great sense of humor that I appreciate! The combination is quite engaging! Thanks Dr Becky for taking the time out of your busy schedule (UK pronunciation 😁) to help us make sense of it all!
Finally the wait is over!! Was eagerly waiting for this video since your shorts about this. Thanks ☺
This was very enlightening, pun intended. I reasoned they would be able to model the observed distortion but hearing you explain that they were able to conclude it's most likely a single star because it has to be smaller than 2 ly across made so much sense. Thanks for another great video!
Proof that science can be fun and adorable. The enthusiasm and expressions mixed with the knowledge make this very cool.
I've been waiting for and looking forward to you doing a video on this!
Your smile and enthusiasm are the best part of every day that you cross my path. Thank you.
Thank u, Dr Becky, for this erudite explanation on Earendel so laymen like me could get demystified about it. For ex, I was wondering how Earendel could be "oldest" when there is the Methuselah star 😊. Now I gather that this is the "farthest" star we are seeing, and therefore as it was just under a Byo after BB.
For the most likeable astrophysicist on the planet, i pray you get your time on Hubble, and sooner than later, JWST. You deserve both Dr. Becky!
Terrific explanation, Doc! To be here at this moment when such wonders are first seen...
You are superb at science communication! I’ve had two courses in astronomy and you often clear up something I am a little fuzzy about.
Thank you for this! When I heard about this discovery I assumed its stellar nature was confirmed by a spectrum. To hear that this assumption is based on the estimated size is a bit of a disappointment - I was hoping this meant we had a spectrum for a population 3 star. Can't wait for JWST to take a closer look.
Soon!
@@DrBecky
I'm wondering how long the star will remain in that super exact position that has it so magnified. Even tiny movements of the lensing galaxy would disrupt the perfect alignment. I bet it lasts multiple years, but, 100 years? 1000 years?
The pool ripples thing is the best analogy or explanation of gravitational lensing i've ever heard!
Some interesting points I've not come across at other sources such as Earendel being displayed only once and specially about the shifting absorption line filtering out 'all' wavelengths beyond the hydrogen line due to redshift. Never really thought about that filter effect. Have to let that sink in and whether that is the answer to my question as redshift alone is imho not enough to determine the distance. Imho redshift just represents the distance the light has traveled through expanding space, but as a lens may cause refraction that's not necessarily in a straight line.
It's close enough to straight as makes no difference, the discrepancy would only show up at 5 or more decimals
Your excitement is contagious!
Need more singing bloopers! 😉
Given the extreme magnification factor to even be able to observe this star, by the time we are able to observe it with Webb, wouldn't its lateral motion potentially take it out of the lens sweet spot where we might not be able to see it anymore?
Not at this distance.
As I've understand it there is a lot of uncertainty about this, but the consensus seems to be that we're most likely able to see it for several years, up to a few decades.
@Bobb Grimley This has nothing to do with the observational technique, as far as I known gravitational lensing is pretty well understood though without doubt more can be learned. This is about the relative movement of the star, the lens and earth that make this observation possible. If the alignment changes too much due to the relative movements through space the star just moves out of the field of view from our perspective. Without doubt others will get discovered, but the window of opportunity to study this specific star is limited.
I think I read it's already been viewable for 2/3 years.
@@silentwilly2983 I mean, in the worst case scenario we will only need a year until Webb can look at it, so it should be fine.
I love that you jump right into it. Thanks! So many channels push this huge intro and hype something up for a disappointing video
5:34 Just a minor point: SN UDS10Wil is the most distant type Ia supernova ever seen, but not the most distant overall (that would be SN 1000+0216).
What do you mean it's the most distant seen but not the most distant overall? How do we know about more distant ones without having seen them?
@@DJMattEmpathy You've earned the critical thinking award of the day. Well done, sir.
@@DJMattEmpathy SN UDS10Wil (the one shown in the video) is the most distant supernova of the type Ia. But there are other types of supernovae (like type II), and there are supernovae where we don't know what type they belong to. In the case of SN 1000+0216, we know that it is more distant than the other one, but we don't know its specific type.
Of course we have seen SN 1000+0216. It's just not of type Ia.
@@renerpho ah of course da-doy!! Lol!
Wow, love that it’s named Earendel; I had no idea, but then, I haven’t had the chance to learn much about this discovery yet.
This is a case where an anime name would fit nicely too: Meruem - "The light that illuminates all"
I think it's more accurate to say that the light Hubble saw left Earendel 12.9 billion years ago, when the universe was 7% of its current age. But right now Earendel is actually 28 billion light years away from us because the universe has expanded since the light we see left Earendel.
That doesn’t quite fit into a 100 character title though 😅
@@DrBecky "Hubble Captures Earliest Star Light Ever Seen By Humans - Astronomers Giddy" or "Astronomers Ga-Ga Over Star Light From Universe's Infant Years Seen By Hubble" (FYI, I'm giddy over your channel.)
A great video, Becky. I was wondering how they identified the star and analysed its age. I assume, of course, that it's unlikely to still be shining where it actually is?
Its definitely long dead none of the types of possible stars they suggest it could be live more than a few hundred million years at the oldest and thus this source is long gone. That is unless of course it is an accreting compact object rather than a star? I don't know if they ruled out that latter possibility after all.
We don’t know the age of the star. Again, a spectrum from JWST should tell us. Stars of this mass usually live about a billion years or so, it has gone supernova a long time ago
This is the fourth video I have watched, I thought I understood how this worked until you explained it clearly and concisely. Thank you so much!
I am like that. You need to watch one of her videos on how to steel the Moon. It was done on April 1st and she makes a rotten lier and criminal.
It was about using an electrical cable wraped around the Moon can you steel it and pull it to the Earth. I never saw algebra written before this. I only do basic math like 76 time 76 50 + 25+ 1
76 times 50 = 3,800
+ 25 * 76 = 1900
plus 76 which is one percent of 7,600
5,776 is the answer.
Thanks Dr Becky. Astrophysics with such a wonderful educator as yourself is so enjoyable. Keep up the Great work. 🤭 Christine★McVie and Stevie★Nicks, are also wonderful Stars 🙏🏼🕊️🤍
Always informing, always entertaining. Dr. Becky's enthusiasm is contagious. Great stuff.
I really hope that the James webb telescope will show us that the universe is significantly older than our galaxy. Showing that our galaxy is considered relatively young.
Seems like you're headed to Steady State Hypothesis.
The bloopers give so much context to what goes into these videos.
I wonder if there are planets out there that are in perpetual daylight across both hemispheres in star clusters or perhaps in binary star systems?
Or a six star system??? en.wikipedia.org/wiki/Nightfall_(Asimov_novelette_and_novel)
Using a galaxy as a magnifying glass... This is the most amazing story I have heard in a long time. And Dr. Becky is bringing the exitment across so well, I am simply delighted.
What does being able to see such an early start say about the size of the universe, if anything?
Because we can clearly see that the universe is expanding. If it really began as a singularity that erupted in the "Big Bang", they we can backtrack from today to when it began and then determine how large the universe must be in order for what we currently see, to exist at all.
Kinda like someone tells you that they have been travelling at 100 kmh for 10 hours.
So THAT tells you that they came from a distance (by road) of 1000 km away. So the land that they have been travelling over must be at least that large.
Great video! I'll be watching for the follow up when the new research comes out. Caught the little bit of Everywhere at the end of the bloopers. The awesome thing about space is that it's everywhere.
Hubble was missing all that love and admiration. James Web took it all.
Sounds like the beginning of a song
@Bobb Grimley No rebuild needed (yet), I think Hubble is expected to operate into the 30's.
Hubble is the older sibling who's afraid the new baby is going to get all the attention.
Your explanations of complex physics in your videos gets better by the episode, I will totally shamelessly take them to explain these phenomenon to others ;) thank you again for making these topics fun and easy to understand...
Thanks for sharing your knowledge with us.
Your passion removes any topical 'redshift' due to stereotypical expectations. Well done.
Hubble clearly decided it needed to raise its game to show the new kid on the block who's the daddy.
Those were some super useful graphics, which were totally missing from the regular new stories. Thank you!!!! And I'm glad to know that there are people in the world who have the same excitement about this kind of stuff as I do. And another Tolkien fan too. I loved that "tangent." Anyway, I don't have the time to delve into the scientific papers on every thing, so I appreciate your covering this. It made my morning.
With this observation, in a way, Hubble says: Webb, please take over.
I think this is an important correction: The star is actually not just 12.9 billion light years distant, at least not in the way we normally mean. The NASA article clearly states several times that the light received was 12.9 billion years old, which means the light-travel distance is 12.9 billion light years, but the comoving distance should be much greater. If you read the article (linked below), you'll see that they never actually state the distance at all. They do give the redshift z = 6.2, which is consistent with a wide range of comoving distances depending on H(ζ) for 0 < ζ < z ≈ 6.2 and on the exact value of z. So that's probably why they don't actually give an estimate. But regardless, it has to be significantly more than 12.9 Gly.
As an example, if you plug z = 6.2 into this calculator from UCLA, it gives you a comoving distance of 27.8 Gly.
NASA press release: nasa.gov/feature/goddard/2022/record-broken-hubble-spots-farthest-star-ever-seen
Calculator: astro.ucla.edu/~wright/CosmoCalc.html
Came for the astronomy. Stayed for the Tolkien scholarship. 😊
From memory, the star of Earendil, was named after Earendil the mariner. He was a half Elf, that sailed west to Valinor (lands of the gods) with a Silmaril made by Feanor no less. The gods then sent the Silmaril to travel across the sky for all time.
@@TurinTuramber Yes, Earendil was the son of Idril (elf) and Tuor (man). Of course he married Elwing, granddaughter of Luthien (elf/maiar) and Beren (man). Their children were Elrond, who everybody knows about, and Elros, who chose to be a mortal man and was first king of Numenor.
@@jeffralston1 I'd also like to add that Elros is the ancestor of Elendil, Isildur and Aragorn.
@@hebl47 Which makes Aragorn and Arwen cousins, many generations removed.
@@jeffralston1 And Aragorn also broke his toe kicking a helmet.
Thank you Dr. Becky for the Tolkien reference and explanation. Made my day. But more importantly, thank you for doing this for us.
Hubble be like:Nobody's going to take away my position 😂😂
It was like it was waiting for this moment 😂😂
True, but Webb is about to punch Hubble's gut and send it home crying for mama!
Thank you Dr. Becky for giving me so much information about this star.
Just happy to know I'm not the only one who goes around singing Fleetwood Mac all day..
And yes, that song is now stuck in your head.. Enjoy =)
This was phenomenal, thank you! I had seen this in the news, but this was so much more detailed, I truly appreciate it. And I am so excited for Webb’s observations! What a stroke of luck that this was discovered just in time for Webb’s commissioning.
It is just beyond amazing that we get to see a demo of the amazing abilities of the James Webb right off the start on such a potentially unbelievably important discovery! So exciting
Gotta love when such a hyper-intelligent person capable of understanding phenomena like this one gets so passionate and excited and capable of explaining it to a ditch-digger... Thank you so much for the amazing ride, Dr. Becky!
Great job unpacking the significance of this exciting find. I just wish we got to see you drain your wine glass prior to the excellent demonstration of light bending and/or fill it back up for sipping afterward. Stay amazing!!!
You're wonderful. Your enthusiasm is infectious, and I love this stuff to begin with. And love the nails.
Thank you. I really enjoy your presentations. Much floats over my head, but some of it sticks..WOW. It will be interesting to see what is learned from JSWT.
Earendel also means wanderer. He was a person forced to journey into the darkness in a ship.
So Earendel has travelled very far indeed.
Fantastic video, very well-explained and easy to follow, and full of your usual infectious enthusiasm! Please give us an update when JWST gets around to observing the star!
You are a very bright person but it is so cool that we regular folks can understand what you are talking about. Thanks again. Love to buy you a beer in pub if you ever get to the U.S.
Thanks Dr. Becky, I think that I understood what is going on. This is very complicated material, and you did a brilliant job explaining it!
Thank you for the awesome explanation of the significance of this star. I was almost in a zen listening and picturing the scale of it all!
You enthusiasm for Astrophysics is inspiring. Cheers Dr Becky. :-)
Absolutely incredible video! So much detail and knowledge and translated in a way everyone can understand. Dr. Becky you are the best!
You were very animated today. The excitement showed on your face.
Dr Becky Smethurst is THE best astrophysicist EVER. You explain everything in plain English for us non astrophysicists, but who love all things about the cosmos 💓👩🚀👩🚀 💓
I WAS WAITING FOR THIS!!! Thank you!
I also noted your accent sounded more game of thronish than I remember it to be haha
I’m from Lancashire. Across the hills from Yorkshire where Sean Bean is from who played Ned Stark - the other actors of the Stark family based their accents off his
@@DrBecky 😱😱😍
Thank you for the response!
Every time I watch something, I always get something new. Thanks for the great explanation :)
Thank you this video. This is the best explanation I have seen for how the age of stars is determined. I love your videos, and your infectious enthusiasm.
Love it Becky!!! Always look forward to your post! 🙏🏻
I was pleasantly surprised with the technical depth this video had.
YOU, Dr. Becky, are a true star!
I love your vids so much Dr. Becky! Thanks for making astronomy so much fun with your content!
Thank you, I love how you explain complex things like I am a 5 year old. Makes sense after you explain it. And to bring Tolkien into the naming of the star, brilliant and entertaining..
You have a lovely singing voice, Dr Becky! 👍
The thing I find most fascinating is, if this star truly does prove to be at 12.9 Billion light years away and also is limited to just one star.. And this is what I find most mindblowing of them all is. The likelihood of that star still being there, is extremely remote. I wont say impossible because nothing is impossible, just improbable until proven otherwise. How many wonderful and beautiful objects can we see in our skies now. That if we were where they are. They would no longer be there but long gone. This is what most people forget.... our eyes detect light which allows our brains to put that into images we can understand. But light takes time to travel even a short distance. We cannot ever see anything in real time. But, only in the past. Nothing we ever see is the present....... a scary but also fascinating thought. A great video Dr Becky. Thank you :)
"Massive tangent" but a cool tangent. Thank you Dr. Becky.
I had no idea about the gradual loss of light as it continues to red shift and becomes absorbed along the way. Thanks for the video.
Dr. Becky... I'm not an astrophysicist nor am I a cosmologist; and yet I am stoked for the science that's being done. I love it. The JWST is going to be legendary. So here's a question I've always had. These observations are of the past; were observing where these galaxies once were. My question is always where are these galaxies, where are these stars now. Present tense not where they were.
This star is dead. It will have gone supernova around 11.9 billion years ago but we’re still receiving the light from it now. The galaxy it’s in will still exist but look very different from what it did back then. It will look similar to what we see today in Andromeda or M87 depending on how it has evolved. We can’t know for sure for that *specific* galaxy but that is how we know how the universe and galaxies have evolved by comparing then to now
Fascinating 🖖Live long and prosper Dr. Becky.
Always look forward to seeing Dr Becky on Thursday 🌙🪐🚀😊
That Fleetwood Mac in the end was quite the throwback. Now I need to go listening to them again.
Oooooh! This is the first I've heard that it actually could be a Pop III star. That would be amazing.
really well presented .
love the section from 2:24....always wondered how that was determined .