I’m a 53 year old fan of space. Thanks Mr. Cain! I’ve also been following JWST for years and I’m so glad it has had such a great startup! These are exciting times for my generation and for my 17 year old son, it’s going to be greater since our technology is growing so fast!
It means James Webb Space Telescope. They have even already launched a coin named JWST in bsc so sick what will happen with this coin 🪐🔭 see you guys in the space
I've been following JWST for about 8 years, when I first heard about it. To say my anticipation is about to boil over is a huge understatement! Can't wait for that first data!
Thank you for this overview of JWST. Besides studying exo-planets I was most excited for the earliest views of the universe. Recently I am even more intrigued by what could be found in our own solar system.
Absolutely, because the fact always remains that we don't know what we don't know, and even putting aside everything in the Universe outside of the region(s) our Sun holds the dominant influence in (I put the plural "s" in parentheses because I don't believe the zones of the Sun's magnetic dominance and gravitational dominance line up for example-not really important for our purposes though), just this solar system has SO MANY MORE things it's hiding from us than things we've already discovered and pinned down. We are nowhere near the point of having explored every nook and cranny in our little patch of spacetime. Even IF you just take our knowledge of the mere EXISTENCE of an individual body in the solar system as counting toward the full exploration of our solar system, without having to consider whether we've narrowed down the exact size and shape of an object, seen each hemisphere of an object (looking at you, Pluto), or indeed seen an object as anything other than a point of light (like the tiny moons around outer solar system bodies like Orcus, Makemake, and Haumea), then we STILL aren't anywhere close to having explored the whole solar system. Like not even .01% of the way there either. So I'm definitely right there with you, really looking forward to learning whatever more JWST can teach us about our stellar neighborhood 😎
Sure the wait has been long but wow am I pleased that in one month we're going to feast on these new images that potentially will allow us to see what has, up till now been unseeable . Especially planets.
Question(s) for Fraser: how is JWST “pointed”? Is the telescope always attached to the sun shield at the same angle? Does it have to waste fuel to point at a given object? Can certain areas only be observed at certain times of year, when the telescope is already semi-pointed in their general direction? How will JWST do a deep field image, i.e., how will it point at only one spot for long periods of time? These questions are all related, just different ways of asking the same thing. Thanks Fraser! Love your channel.
@Smee Self So the natural follow-up question is, what kind of allowance for not having the center pointing directly away from the sun is there? Probably not much, but maybe a couple degrees? Less than a degree? Since it tracks Earth's orbit, that's about 1 degree of rotation due to orbital movement per day, so a deep field would take 7 years to get 4 days of observations per year if you could only adjust your attitude by 1 degree in each direction, twice per orbit.
Same here on that Trappist-1 answer in response to what target you're most looking forward to seeing James Webb observe, Fraser. Like it's not even a question in my head. Trappist-1 _ALL THE WAY,_ baby! Let's do it, humanity!!! lmao 😂
Mr Cain - you are clipping your words - decreasing the volume of your sentences at the ends. I know - picky picky. But professional delivery is EVERYTHING! BTW great video!
Cant we keep the james web working for many years by shutting down some of its instruments and keeping the main ones running like we have done with Voyager ! Love your channel Fraser. Been a subscriber for many years now . Keep up the great work.
Not a single failure!!! Im 60, remember the late Apollo missions... Thought I would die before this launched... now within a month of getting science???
I know there should be a huge waiting list for observations with the JWST... But two of them I'm really hoping to see are the Trappist-1 system and Tabby star. I don't even care about what they're going to find... I'm just fascinated by them! Anyway, stay safe there with your family, Fraser! 🖖😊
Imagine working on a telescope for decades and then you look at the empty space where it sat, knowing that what you worked on is hundreds of thousands of kilometers away.
Frasier I have a question: back in the 80’s there was a talk of the possibility of building space lifts from earth’s equator to cheaply shift cargo to earth’s orbit. I even remember seeing artist’s impression of such projects. Then the lifts disappeared from the news like Dr Livingstone in Africa. Was this concept always a no-go or there were some insurmountable challenges from either the engineering/financial/safety point of view? Thanks!
You could theoretically do it with graphite, but that can't be manufactured to the extent needed. Other materials wouldn't be able to handle the forces
Viewed for an hour in the backyard in South Florida with some cloud cover. Sitting in my recliner I saw about 25. and was surprised that the fireballs were white and blue....not a single red fireball????? maybe indicative of not much heavy metal in the sample I saw.....kinda disappointed but it was still worth the time......AND BEER!
Suggestion. I think it would be interesting if you invited Daisuke Taniguchi, the PhD student who used the Himawari weather satellite for analysing Betelgeuse.
A remarkable technological achievement to design & build JWST, get it to its destination, & then operate it as designed. Hope that its achievements will meet or exceed all expectations 🙏
Frasier, I love, love, love your channel! Are the images you had zooming out from the Milky Way simulated to close or correct scale? If so, I feel smaller than ever. :( Also, what imaging device concept are you most excited for, given that Starship goes as planned with at least 100T capacity?
Tks for such an interesting video. I like that it was delivered in an uncomplicated manner. Proof of planet nine will be so exciting as well as viewing the planets in the Trappist system. 10B dollars is a very small fraction of our govt's budget and it's spending is easily seen and doesn't disappear down a rat hole. A project we Americans can take pride in and point to as American ingenuity at its finest.
I'm a big fan of JWST, and only recently began watching your videos, but am absolutely fascinated with the content and appreciate the large amount of knowledge and scientific info, and impressed by your ability to communicate it. If infrared wavelength can pear back the farthest into the infancy of the universe, what sort of telescope could surpass the JWST?
Seems I saw just the other day a short news video about NASA looking into a way to refuel and repair satellites in Earth orbit. JWST was not mentioned as a reason to create the ability to repair/refuel in near earth orbit but also all the way out to the L1, L2 points. No mention of a stop-off at the Moon on way to JWST but it could happen. Thank you Mr. Cain for the much needed update and compilation. We look forward to more.
This is better than almost anything I could name. By my birthday my mind will be blown like never before. Wonder how the anti-science crowd will double-down on this one.
I have a question about the Fermi paradox: If we postulate that we are not unique and occupy a special place in the universe, then why don’t we assume that life began 3.5 billion years ago in other galaxies and that intelligent life capable of scientific exploration arose about 200,000 years ago in those galaxies, as it did here? Other galactic civilizations would possess the same understanding and capabilities that we possess - unable to detect life in the nearest star system. Why must we assume other civilizations must be older, smarter, more advanced and more plentiful or else be nonexistent?
I get that everyone wants to look beyond our solar system, but it would be great to get more information of our own solar system first. Like, is there a sister earth we cannot see? Maybe we can finally determine if Pluto is a planet or not.
Pluto is one of dozens of blocks of ice out there past Neptune. Except for comets and transneptunian objects like Pluto, theres nothing else but dust. There is no planet we dont know about in the system. Pluto lost its status as a planet for many reasons, mainly due to its size and location though.
The Pluto Express mission has already sent back photos of Pluto that are far more detailed than anything JWST can do. The only reason for JWST to take more images of Pluto is to check in on any atmospheric changes, if any. I doubt it's high priority target.
There are other reasons for the cost overruns and the delays. A number of mishaps with respect to telescope construction and maintenance occurred. In one of them, the JWST's propulsion system was cleaned with a solvent that damaged some of the parts, which required refurbishment. In another, some fasteners were incorrectly installed on the sunshield, and these (about 70 of them) fell off when the telescope was moved - some of them fell into the JWST's inner works. No doubt other goof-ups happened that I just didn't hear about.
How can you combine several wavelengths invisible to humans to make it visible? It's already invisible, meaning your eyes don't have the receptors for those wavelengths no matter how many invisible wavelengths you stack together.
Nice. But JWST could be serviced by a crew of 4 on an Orion and hab module launched on SLS block 1B within 5-10 years from now Then SLS block 2 with a lot more supplies when we we have future tech upgrades for JWST 10-15 years from now
Exploring Europa is hard due, in part, to Jupiter’s radiation regime. My two-part question… first: is Jupiter’s radiation directional? Are the accelerated particles going in just one direction or is the radiation an omnidirectional hell? Second: Is Europa tidally locked to Jupiter? My son’s thought: If Jupiter’s radiation is directional AND Europa is tidally locked then there should be an ideal side of Europa to land and work on… the lee-side from the radiation. A few metres of hydrogen-rich volatiles does wonders at blocking radiation. A whole moon rich in hydrogen would be an awesome radiation blocker.
I like the idea of seeing satellite galaxies on the other side of the Milky way . . . and the Strange Attractor. I remember reading "Voyage to the Great Attractor."
I'm hoping they push the James Webb to as close to the Cosmic Background Radiation as possible. Sounds to me that the Astronomers don't think they can get to about 400,000 years, but only a few million years of the Big Bang.
When are we going to see the pictures? For many, many years I've heard how wonderful and powerful JWST was going to be so would be nice to see some pictures of the universe
Hey Fraser - you mentioned being able to see fainter objects with increased exposure time; are there some things scientists would like to view, with Hubble for example, but can't because it would take too long? How would the results we get from telescopes in general change if we had all the time in the world?
Can they launch another normal space telescope without the space shuttle? It would be a valuable thing to have for less cost that these revolutionary projects.
If you want endless propellent for your attitude correction, look no further than an IR collector which collects solar energy, converts it to electricity, and stores it in capacitive batteries ready for conversion to an IR heat engine for those small thrusts.
instead of making super complicated, super expensive space telescopes like James Webb and luvoir, that have hundreds of single points of failure, every one of them ending the mission if just one of them fails just to get a several meter telescope, when we could just mass produced a super simple 12" space telescope that is nothing more than a tube, lense, and an ion engine and dump thousands of them along Earth's orbit and use interferometry to make a 2AU telescope with far more combined surface area than every telescope humanity has now, you could use say starship to launch hundreds of small sat telescopes and even if 1% of them completely fail, you still have more than enough to get good data You could even use different parts of the constellation to observe multiple objects at the same time or all of them to observe maybe surface features on exoplanets The benefits would be that if any fail, you have more than enough redundancy and can just launch more later, just like starlink
SP AK USA I'm guessing it will be just like the Hubble, where they are constantly asking for the public to help process, understand and help with the uploading of data. All this "censorship" is just a myth.
If they make a second James Webb and send it the the L2 point, and use the diameter of the L2 point to create a bigger light gathering bucket, though getting two telescopes to work together. Is that optimal? And is that possible? Do you think its just common sense?
An optical interferometer is certainly possible, but it's extremely difficult to do, even here on Earth with telescopes next door to each other. The problem is the relative positions of the two telescopes would have to be so precisely known and controlled that it would take special equipment on board each spacecraft to achieve it, and it would no doubt compromise the performance of other aspects of the mission. So it can't be done without a mission being designed from scratch, are we're probably several decades away from it even being technically feasible.
JWST won't resolve exoplanets as disks. They'll be subpixel points. You'd need a space telescope many kilometers across to resolve exoplanets as disks. If a gas giant planet the size of Jupiter were orbiting Alpha Centauri A, it would have an angular diameter of only 3.5 nanoradians, or 0.725 milliarcseconds. To barely resolve it from the solar system, a space telescope would need a diameter of 347 meters.
I would've preferred more funding for a mission to Europa or Enceladus or Titan... by 2022.... with a proper lander... and rover.... helicopter (for Titan)... over JWST. If I had to choose... I think landing on those moons is way more interesting.
Thanks for the video! It answered a lot of my questions on JWST. I wanted to ask, why are the mirrors kind of gold colored? Are they actually gold? Also, wouldn't the color of the mirror affect the image the telescope gets and have to be color corrected?
The mirrors are gold coated, made from beryllium if memory serves. I imagine any colour correction needed would be a doddle to those who built this amazing bit of kit.
After the coolant has run out, and it no longer has the fuel to stay on station, could this telescope still be used for higher temperature observations?
If our solar system with our small star has 8 planets (9 if U count Pluto) wouldn't a gigantic star like Betelgeuse have hundreds of planets, which makes it more likely to have habitual worlds since its Goldilocks zone would also be much larger
Just think if they spent that money on making a star ship before space X as to solving the big telescope into a small rocket, they should have thought big rocket for a big telescope
Is it possible that something like the Permian extinction 250 million years ago happened on Venus as well, and the reason Venus became so crazy while Earth didn't was because Earth already had life on it to counter act the chemicals?
The Permian extinction is suspected to have been caused by a sharp spike in CO2 from volcanism. The Siberian Traps, huge chain of volcanism is the leading suspect. Life on Earth was counteracting the effects but may also have exacerbated the situation. Ocean-based methanogen bacteria likely belched up hydrogen-sulphide (rotten egg smelling) which is toxic to oxygen breathers. While land-based plants were busy trying to sequester CO2 they’d have been periodically poisoned with H2S clouds. Earth’s geology will have no causal link to Venus’ geology if Venus has geology. Venus starts with a difficult atmosphere rich in CO2. Plants would have a field day if it weren’t for the crushing pressure and metal-melting temperatures.
@@CarFreeSegnitz Hmmmmmmm..... That's true, yeah. Good point. I just thought maybe. Though, Mars has volcanoes despite not having tectonic plates, so I think it's still vaguely possible, but, yeah, you've made it less likely, I would say.
![All You Need to Know About the James Webb Telescope [4K]](/img/n.gif)
I’m a 53 year old fan of space. Thanks Mr. Cain! I’ve also been following JWST for years and I’m so glad it has had such a great startup! These are exciting times for my generation and for my 17 year old son, it’s going to be greater since our technology is growing so fast!
53 young guy here. 18 forever baby
@@LarsRyeJeppesen Except for my knee.
It means James Webb Space Telescope. They have even already launched a coin named JWST in bsc so sick what will happen with this coin 🪐🔭 see you guys in the space
49 here 16 yo son … and 5 yo little son. Thanks to the US so much for such projects … awesome … we love JWST
@@madderhat5852 Oh yeah, those damn knees. And hips
I've been following JWST for about 8 years, when I first heard about it. To say my anticipation is about to boil over is a huge understatement! Can't wait for that first data!
So... close.
Thank you for this overview of JWST.
Besides studying exo-planets I was most excited for the earliest views of the universe. Recently I am even more intrigued by what could be found in our own solar system.
Absolutely, because the fact always remains that we don't know what we don't know, and even putting aside everything in the Universe outside of the region(s) our Sun holds the dominant influence in (I put the plural "s" in parentheses because I don't believe the zones of the Sun's magnetic dominance and gravitational dominance line up for example-not really important for our purposes though), just this solar system has SO MANY MORE things it's hiding from us than things we've already discovered and pinned down.
We are nowhere near the point of having explored every nook and cranny in our little patch of spacetime. Even IF you just take our knowledge of the mere EXISTENCE of an individual body in the solar system as counting toward the full exploration of our solar system, without having to consider whether we've narrowed down the exact size and shape of an object, seen each hemisphere of an object (looking at you, Pluto), or indeed seen an object as anything other than a point of light (like the tiny moons around outer solar system bodies like Orcus, Makemake, and Haumea), then we STILL aren't anywhere close to having explored the whole solar system. Like not even .01% of the way there either.
So I'm definitely right there with you, really looking forward to learning whatever more JWST can teach us about our stellar neighborhood 😎
Sure the wait has been long but wow am I pleased that in one month we're going to feast on these new images that potentially will allow us to see what has, up till now been unseeable . Especially planets.
Thanks for this video, really informative, cant wait for what JWST discovers!
What a JWT masterclass! Thank your for the push-ups! 😃
Question(s) for Fraser: how is JWST “pointed”? Is the telescope always attached to the sun shield at the same angle? Does it have to waste fuel to point at a given object? Can certain areas only be observed at certain times of year, when the telescope is already semi-pointed in their general direction? How will JWST do a deep field image, i.e., how will it point at only one spot for long periods of time?
These questions are all related, just different ways of asking the same thing.
Thanks Fraser! Love your channel.
@Smee Self
So the natural follow-up question is, what kind of allowance for not having the center pointing directly away from the sun is there? Probably not much, but maybe a couple degrees? Less than a degree?
Since it tracks Earth's orbit, that's about 1 degree of rotation due to orbital movement per day, so a deep field would take 7 years to get 4 days of observations per year if you could only adjust your attitude by 1 degree in each direction, twice per orbit.
TH-cam recommended your channel, so here I am 😀 fascinating
One of your best videos to date. I love when you do anything in depth. Sadly the audio or video quality deters me a tad from the interviews at times.
Glad you enjoyed it, trying to give you a bit of that Guide to Space vibe.
I have no questions. Just jaw dropping awe at this telescope.
Same here on that Trappist-1 answer in response to what target you're most looking forward to seeing James Webb observe, Fraser. Like it's not even a question in my head. Trappist-1 _ALL THE WAY,_ baby! Let's do it, humanity!!! lmao 😂
Mr Cain - you are clipping your words - decreasing the volume of your sentences at the ends. I know - picky picky. But professional delivery is EVERYTHING! BTW great video!
Best video on JWST I've found yet! Subscribed!
This makes me so happy. I am so grateful to be alive right now.
This episode makes me feel like the "guide to space" has finally returned!!!! I love it!
Love the background graphics of JWST
Cant we keep the james web working for many years by shutting down some of its instruments and keeping the main ones running like we have done with Voyager ! Love your channel Fraser. Been a subscriber for many years now . Keep up the great work.
I mean the Hubble Telescope was supposed to run for a few years and it still works today.
It’s getting so close now! I’m so excited
Not a single failure!!! Im 60, remember the late Apollo missions... Thought I would die before this launched... now within a month of getting science???
I know there should be a huge waiting list for observations with the JWST... But two of them I'm really hoping to see are the Trappist-1 system and Tabby star.
I don't even care about what they're going to find... I'm just fascinated by them!
Anyway, stay safe there with your family, Fraser! 🖖😊
webb and vera rubin are going to completely reshape astronomy! cant wait for a redo of the deep field.
No kidding, we’ll do an episode on Vera Rubin too
Thank you Fraser and Anton
Imagine working on a telescope for decades and then you look at the empty space where it sat, knowing that what you worked on is hundreds of thousands of kilometers away.
It’s got to be surreal knowing they’re about to receive science data from it.
Frasier I have a question: back in the 80’s there was a talk of the possibility of building space lifts from earth’s equator to cheaply shift cargo to earth’s orbit. I even remember seeing artist’s impression of such projects. Then the lifts disappeared from the news like Dr Livingstone in Africa. Was this concept always a no-go or there were some insurmountable challenges from either the engineering/financial/safety point of view? Thanks!
You could theoretically do it with graphite, but that can't be manufactured to the extent needed. Other materials wouldn't be able to handle the forces
Thank you for sharing the video
Great video! Looking forward to when we find Planet Claire.
Thank you, Fraser!! You are the best (together with Tony Darnell)!!
Did anyone get any meteors last night. Sky was washed out by high clouds here?
a few fireballs and 1 decent meteor every 3 or so minutes. only lasted an hour but not a bad meteor shower, just not what it was hyped up to be
It was cloudy and still bright for me, but it sounds like it was a dud. :-(
I got 5 meteors in under 2 minutes then clouds
Viewed for an hour in the backyard in South Florida with some cloud cover. Sitting in my recliner I saw about 25. and was surprised that the fireballs were white and blue....not a single red fireball????? maybe indicative of not much heavy metal in the sample I saw.....kinda disappointed but it was still worth the time......AND BEER!
Good meteor shower.....PISS POOR meteor Storm
Suggestion. I think it would be interesting if you invited Daisuke Taniguchi, the PhD student who used the Himawari weather satellite for analysing Betelgeuse.
A remarkable technological achievement to design & build JWST, get it to its destination, & then operate it as designed. Hope that its achievements will meet or exceed all expectations 🙏
The first images from TRAPPIST-1. Good one! Most people are thinking in the in the deep cosmological stuff, but TRAPPIST-1 will be awesome!
Frasier, I love, love, love your channel! Are the images you had zooming out from the Milky Way simulated to close or correct scale? If so, I feel smaller than ever. :( Also, what imaging device concept are you most excited for, given that Starship goes as planned with at least 100T capacity?
Tks for such an interesting video. I like that it was delivered in an uncomplicated manner. Proof of planet nine will be so exciting as well as viewing the planets in the Trappist system.
10B dollars is a very small fraction of our govt's budget and it's spending is easily seen and doesn't disappear down a rat hole. A project we Americans can take pride in and point to as American ingenuity at its finest.
Looking forward to a Starship sized JWST. Massive.
I'm a big fan of JWST, and only recently began watching your videos, but am absolutely fascinated with the content and appreciate the large amount of knowledge and scientific info, and impressed by your ability to communicate it. If infrared wavelength can pear back the farthest into the infancy of the universe, what sort of telescope could surpass the JWST?
This would have been an awesome science class back in HS.
Seems I saw just the other day a short news video about NASA looking into a way to refuel and repair satellites in Earth orbit. JWST was not mentioned as a reason to create the ability to repair/refuel in near earth orbit but also all the way out to the L1, L2 points.
No mention of a stop-off at the Moon on way to JWST but it could happen.
Thank you Mr. Cain for the much needed update and compilation. We look forward to more.
Fraser,
Can JWST be used to find Kuiper Belt objects for New Horizons similar to how Hubble found Arrokoth for New Horizons?
It would be cool to know if there's some sort of cloud obscuring our view of Betelgeuse or what is going on with the star
This is better than almost anything I could name. By my birthday my mind will be blown like never before.
Wonder how the anti-science crowd will double-down on this one.
I have a question about the Fermi paradox: If we postulate that we are not unique and occupy a special place in the universe, then why don’t we assume that life began 3.5 billion years ago in other galaxies and that intelligent life capable of scientific exploration arose about 200,000 years ago in those galaxies, as it did here? Other galactic civilizations would possess the same understanding and capabilities that we possess - unable to detect life in the nearest star system. Why must we assume other civilizations must be older, smarter, more advanced and more plentiful or else be nonexistent?
I get that everyone wants to look beyond our solar system, but it would be great to get more information of our own solar system first. Like, is there a sister earth we cannot see? Maybe we can finally determine if Pluto is a planet or not.
Pluto is one of dozens of blocks of ice out there past Neptune. Except for comets and transneptunian objects like Pluto, theres nothing else but dust. There is no planet we dont know about in the system. Pluto lost its status as a planet for many reasons, mainly due to its size and location though.
The Pluto Express mission has already sent back photos of Pluto that are far more detailed than anything JWST can do. The only reason for JWST to take more images of Pluto is to check in on any atmospheric changes, if any. I doubt it's high priority target.
Remember this it cost $10 B. It provide jobs and the money was spent here
Worth every penny
Super video, so well explained. Thanks Fraser!
There are other reasons for the cost overruns and the delays. A number of mishaps with respect to telescope construction and maintenance occurred. In one of them, the JWST's propulsion system was cleaned with a solvent that damaged some of the parts, which required refurbishment. In another, some fasteners were incorrectly installed on the sunshield, and these (about 70 of them) fell off when the telescope was moved - some of them fell into the JWST's inner works. No doubt other goof-ups happened that I just didn't hear about.
How can you combine several wavelengths invisible to humans to make it visible? It's already invisible, meaning your eyes don't have the receptors for those wavelengths no matter how many invisible wavelengths you stack together.
Hi Frasier, out did we find out about the L points in space? What is the history behind it. Jason
Nice. But JWST could be serviced by a crew of 4 on an Orion and hab module launched on SLS block 1B within 5-10 years from now
Then SLS block 2 with a lot more supplies when we we have future tech upgrades for JWST 10-15 years from now
The third advantage is that planets are a lot less dim than their stars in IR as compared to visible light.
Exploring Europa is hard due, in part, to Jupiter’s radiation regime.
My two-part question… first: is Jupiter’s radiation directional? Are the accelerated particles going in just one direction or is the radiation an omnidirectional hell?
Second: Is Europa tidally locked to Jupiter?
My son’s thought: If Jupiter’s radiation is directional AND Europa is tidally locked then there should be an ideal side of Europa to land and work on… the lee-side from the radiation. A few metres of hydrogen-rich volatiles does wonders at blocking radiation. A whole moon rich in hydrogen would be an awesome radiation blocker.
All our brains are going to be changed with the discoveries that are coming.
I like the idea of seeing satellite galaxies on the other side of the Milky way . . . and the Strange Attractor. I remember reading "Voyage to the Great Attractor."
I'm hoping they push the James Webb to as close to the Cosmic Background Radiation as possible. Sounds to me that the Astronomers don't think they can get to about 400,000 years, but only a few million years of the Big Bang.
I’m hoping to see a Pop 3 star. And exoplanets of course.
When are we going to see the pictures? For many, many years I've heard how wonderful and powerful JWST was going to be so would be nice to see some pictures of the universe
The Terrascope resonates my soul
Love this! More JWST videos, please!
about servicing the u, i thought there was a robotic spaceship service uni being made for the iss? or some other satellite?
Hey Fraser - you mentioned being able to see fainter objects with increased exposure time; are there some things scientists would like to view, with Hubble for example, but can't because it would take too long? How would the results we get from telescopes in general change if we had all the time in the world?
First mins Tl;dr - Fraser is sick of the same JWST questions being asked every week lol
Great video though 👍
hugs from brazil .
love it
Why didn’t they make a way to doc with it to refill the propellant ?
James Web Space telescope is a very cool telescope
Can they launch another normal space telescope without the space shuttle? It would be a valuable thing to have for less cost that these revolutionary projects.
Hello, I have be doing black hole 🕳 for 15+ years. So my question is do you believe black holes create the galaxies around them????
If you want endless propellent for your attitude correction, look no further than an IR collector which collects solar energy, converts it to electricity, and stores it in capacitive batteries ready for conversion to an IR heat engine for those small thrusts.
instead of making super complicated, super expensive space telescopes like James Webb and luvoir, that have hundreds of single points of failure, every one of them ending the mission if just one of them fails just to get a several meter telescope, when we could just mass produced a super simple 12" space telescope that is nothing more than a tube, lense, and an ion engine and dump thousands of them along Earth's orbit and use interferometry to make a 2AU telescope with far more combined surface area than every telescope humanity has now, you could use say starship to launch hundreds of small sat telescopes and even if 1% of them completely fail, you still have more than enough to get good data
You could even use different parts of the constellation to observe multiple objects at the same time or all of them to observe maybe surface features on exoplanets
The benefits would be that if any fail, you have more than enough redundancy and can just launch more later, just like starlink
Will we have Un-Censored access to these pictures? Or will the owners only allow the pictures they feel should be released?
SP AK USA I'm guessing it will be just like the Hubble, where they are constantly asking for the public to help process, understand and help with the uploading of data. All this "censorship" is just a myth.
Excellent.
If they make a second James Webb and send it the the L2 point, and use the diameter of the L2 point to create a bigger light gathering bucket, though getting two telescopes to work together. Is that optimal? And is that possible? Do you think its just common sense?
An optical interferometer is certainly possible, but it's extremely difficult to do, even here on Earth with telescopes next door to each other. The problem is the relative positions of the two telescopes would have to be so precisely known and controlled that it would take special equipment on board each spacecraft to achieve it, and it would no doubt compromise the performance of other aspects of the mission. So it can't be done without a mission being designed from scratch, are we're probably several decades away from it even being technically feasible.
@@EnglishMike Thank you mike. And thank you The Big Q team... As I am new to the astronomical community:)
'one beeeeeeelion dollors'
Great explanation video. I love this channel
" L2 Lagrange point "?
That sounds interesting
Tell me more
Can't talk, doing pushups.
Will the JWST be able to see a way to get rid of roaches?
The roach is our friend and probably future overlord.😓
Men in Black 2
JWST won't resolve exoplanets as disks. They'll be subpixel points. You'd need a space telescope many kilometers across to resolve exoplanets as disks. If a gas giant planet the size of Jupiter were orbiting Alpha Centauri A, it would have an angular diameter of only 3.5 nanoradians, or 0.725 milliarcseconds. To barely resolve it from the solar system, a space telescope would need a diameter of 347 meters.
Yeah, I should have clarified that. You'll only get pixels.
Thank You!
I would've preferred more funding for a mission to Europa or Enceladus or Titan... by 2022.... with a proper lander... and rover.... helicopter (for Titan)... over JWST.
If I had to choose... I think landing on those moons is way more interesting.
Hey Fraser
how much cheaper do you think jwst would have cost if it was designed to launch on spaceship? would it be a lot cheaper?
Thanks for the video! It answered a lot of my questions on JWST. I wanted to ask, why are the mirrors kind of gold colored? Are they actually gold? Also, wouldn't the color of the mirror affect the image the telescope gets and have to be color corrected?
The mirrors are gold coated, made from beryllium if memory serves. I imagine any colour correction needed would be a doddle to those who built this amazing bit of kit.
How does JWST avoid strikes by space debris etc
After the coolant has run out, and it no longer has the fuel to stay on station, could this telescope still be used for higher temperature observations?
Now it's gone and got a punch in the eye,
If our solar system with our small star has 8 planets (9 if U count Pluto) wouldn't a gigantic star like Betelgeuse have hundreds of planets, which makes it more likely to have habitual worlds since its Goldilocks zone would also be much larger
Awesome!
Thanks.
One would think Star formation in nebular and when do Planets start to form around them would be on their list of things for Webb to study.
Where exactly will it eventually drift to? Would it stay in orbit but just not where the earth will help shield it? Or will it drift off into space?
How much politics and influence are there in the decadal survey?
16:49 huge
The dust is still blowing in. :)
Do you think we will be able to see spaceships?
Just think if they spent that money on making a star ship before space X as to solving the big telescope into a small rocket, they should have thought big rocket for a big telescope
Can we have Webb state out into the voids, to see if anything shows?
Thanks 😊awesome stuff 👏
Fraser - fix the thumb typo! X
Yes I was wondering what the black was inside of the star but I figured it out it was the black hole for that Galaxy
I think they have a way and they will try
The amount of engineering that this telescope has is insane
Is it possible that something like the Permian extinction 250 million years ago happened on Venus as well, and the reason Venus became so crazy while Earth didn't was because Earth already had life on it to counter act the chemicals?
The Permian extinction is suspected to have been caused by a sharp spike in CO2 from volcanism. The Siberian Traps, huge chain of volcanism is the leading suspect. Life on Earth was counteracting the effects but may also have exacerbated the situation. Ocean-based methanogen bacteria likely belched up hydrogen-sulphide (rotten egg smelling) which is toxic to oxygen breathers. While land-based plants were busy trying to sequester CO2 they’d have been periodically poisoned with H2S clouds.
Earth’s geology will have no causal link to Venus’ geology if Venus has geology. Venus starts with a difficult atmosphere rich in CO2. Plants would have a field day if it weren’t for the crushing pressure and metal-melting temperatures.
@@CarFreeSegnitz Hmmmmmmm..... That's true, yeah. Good point. I just thought maybe. Though, Mars has volcanoes despite not having tectonic plates, so I think it's still vaguely possible, but, yeah, you've made it less likely, I would say.
How bad is the recent micro asteroid damage though
They should have put a mini laser turret on the telescope with anti missile lasers in case of alien attack