Big Space Debris Milestone // JWST Spies Exoplanet Weather // Immortal SLIM
ฝัง
- เผยแพร่เมื่อ 17 พ.ค. 2024
- Webb sees weather on an exoplanet, takes a new image of the horsehead nebula, and a satellite takes a close up image of a piece of space debris.
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00:00 Intro
00:17 Weather on an exoplanet
science.nasa.gov/missions/web...
02:26 JWST in interferometry mode
www.universetoday.com/166757/...
04:02 One step closer to space debris removal
astroscale.com/astroscale-unv...
05:26 Hubble goes in and out of safe mode
www.universetoday.com/166780/...
07:03 Black holes can halt star formation in galaxies
www.universetoday.com/166763/...
08:44 Vote results
09:29 SLIM just refuses to die
www.universetoday.com/166765/...
10:32 Great images
www.universetoday.com/166802/...
13:08 More space news
13:59 Hubble's gyros
Host: Fraser Cain
Producer: Anton Pozdnyakov
Editing: Artem Pozdnyakov
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0:46 “Weather?” “Let’s go to Bob for the latest… Thanks Jane. Our Sunside forecast is for clear skies and deathly hellish through the weekend. It’s gonna be that way for near eternity. Back to you Jane.”
Every time you talk about gyros, I have a craving for Greek food.
Thats all only cheap copies of Turkish food. Also compare Ouzo to Raki. The former makes you feel your head, soon and long. Not so the Turkish one. The only food that Greeks do well is Kalamaris, and that they really do well.
@@MichaelWinter-ss6lx Unfortunately there are no Lebanese restaurants near my home but many Turkish restaurants. Garbage food, no flavor, astringent sauces, can't even do desserts properly, and of course you can't get a beer because of Islam.
Take care my dear. He will make inside four you and he will enjoi if you make four agree
01:18 Just yesterday I heard a talk about extreme winds on hot Jupiters and there was a similar graphic in the slides. They're able to model the movement of atmospheric bands. I think it's crazy how far science has come.
04:07 That's really an achievement. So hopefully ENVISAT will be de-orbited in my lifetime.
“I love the horse head nebula” - so random 🤣🤙🏼
Keep on mind that Hubble's mirror coating is 43 years old now, almost 3x their minimum expected lifetime. And those 486 processors are immortal!
Yes, I had an original IBM 486. My most reliable computer ever. It actually got stolen from me 17 months ago. One week before Xmas....
The age of the true craftsmen...is ending.
Thanks for all the news, Fraser! 😊
Hubble needs to be rescued when it stops working, because as dr. Jones would say, it belongs in a museum!
Stay safe there with your family! 🖖😊
It’s amazing how they build these telescopes can get such clear images of things like the horse head nebula.
Always great to get news from James ❤️
You can go directly to NASA and get mind blowing data.
@@markheller8646 I know 😊
I hope that someone develops a mission to Save The Hubble!
Jared Isaacman (I´m not sure how that name is written) is developing a spacesuit for extravehicular activities in cooperation with SpaceX. He is planning on leaving the dragon capsule and repairing Hubble is one of the things he has in mind in order to give the mission a reason.
There is hope for Hubble!
@@user-jd2gi7dy5d I sure do hope that happens!
Thank you for all the news 🎉
The JAXA lunar probe’s longevity is in-line with the actually Made in Japan SANYO cassette & CD player/radio I bought my brother when he graduated university in the 1980’s. I visited him summer of 2023 and he still has it. We tested all functions and *it all still works* !!!
(Yes, it took us a while to find an old cassette tape we could record onto and listen to.)
Thank you!
The Hubble wasn't just ground "incorrectly". An aberration correction was added with the wrong sign, so it doubled the aberration, but it left it completely correctable with the addition of a monocle.
Are you saying Hubble was born under the wrong Astrology sign ?? lol
we gotta get Hubble stories ready. Mine is the Horse Head Nebula came into focus. Stunning!
Great video, Fraser...👍
JWST = #WEBBSTER
If the hypothesized Planet 9 is confirmed, and the planet was a rogue planet captured by the Sun within the last 10 million years or so, is it possible it is not in a stable orbit? Could it materially disrupt Neptune, or could Neptune sling it into a dangerous orbit, and it just hasn’t happened because they haven’t had a close pass yet?
With the gyros on Hubble, we used to have the space shuttle, which was pretty big, that we could put the gyros on. Would all of the gyros we need to fix Hubble fit on a dragon capsule? Or do you think we'd need a bigger space craft before we can fix Hubble?
Internet says Hubble's
gyroscopes weight 24.3 pounds each
reaction wheels weight 100 pounds each
My quick search Couldn't find the dimensions of these
SLIM survives the lunar night again. "All the best stuff is made in Japan." Marty McFly.
Yeah i I give Props to the slim team. Turning a failure around too still do it's mission of science
Good on the Japanese for doing something about space debris and its very important for the future space missions.
Perhaps space treaties could require all objects that go into orbit, including spent boosters, to deorbit themselves after a certain time.
Realy I like this exiplanet
@Fraser Cain I just have to ask, is there a reason you do not post the poll along with the episode? Why wait up to 24 hours?
If any spacecraft has earned the title of Slim Shady, it is SLIM
awe inspiring.
Hubble is indeed so necessary for astronomy! Please, NASA, service it one more time!
One thing I would be looking at, if there is going to be a gyro replacement mission on Hubble, is whether a suite of gyros could be designed and built to fit in the existing mounting arrangement, space available, and interfacing requirements with a spare incorporated on each axis.
This may or may not be possible, but I expect the gyros may be designed with force margins that may be significant, and if so, and the failure modes aren't gradual reduction, but rather 'off the cliff' sorts of failures like motors or bearings, maybe you could back down some of that excess to help. I realize that everything is designed to severe space/weight/etc considerations the first go round, but it wouldn't take much of a study for a handful of the appropriate engineering disciplines, electrical/packaging/dynamics/etc to take a quick look, put in a few man-weeks. Kind of an eyeglass sort of Goldberg fix, but in a different functional area, if you will.
They would likely have time to develop and manufacture them if they began this now and some useful mod was possible, if the mission is years away. It might take about an hour or two to get to a concrete, well reasoned 'no', but it wouldn't cost much to give it a look, especially compared to the mission costs to get either option replaced, literally next to nothing by comparison, actually. Get the right guys involved and engineers can be very creative and clever, given a task like that, and it would be great to have a backup on each axis, obviously, if possible. Just sayin'. They may have already thought of this, who knows? Probably have, if I did, and is doable to free up a few bucks for it (the study).
I seem to remember that there are loads of problems with these gyros...on other byrds as well.
We need Von Neumann gyro-duplicators for all future missions.🖖♾
Those horse head nebula pics are awesome! How dense are the particles in the most dusty regions of that space? Thanks for sharing
Humbles mirror was fine if on earth but with no atmosphere in space so it was blurry, but being fist, they didn’t think about that. Understandable imo.
Gyro tech has improved. Hubble could get more than ten years if repaired.
A thought on SLIM surviving lunar night. If it is covered in heat shielding with it being upside down could it be insulating the ground, it would help keep it warm enough to not break.
The JAXA space debris mission is pretty exciting. Even besides the prospect of keeping our orbit clean and safe, I'm sure the technology that can capture flying junk out of space will have other practical applications for science missions and just space habitability in general.
Can be weaponized too lmao
Love these new horse head images! The knot theory story was super fascinating, shout outs to the newsletter!
It has two arms raised forward, and the head is looking back!
Topic: fixing stuff in the outer space
Hey Fraser - what kind of spacecraft would it take to orbit the sun so that the craft remains within the solar gravitational lens? Do you think it can be done within, say, 100 years?
FTR, Hubble puts itself into safe mode. Just sayin’. No one was on console at 1am putting it into safe mode. It constantly monitors itself and often goes into safe mode when not in contact with the ground even.
Hopefully with rapid advancement in robot technology we can send robots up to fix Hubble etc. I do wonder whether sending up a bunch of gyros in a box that clamp themselves to the outside of the telescope somehow could help matters.
Fucking love you mate :) Had to put that out there
Out of curiosity, I know we can't service Hubble any more, but do the gyros have to be buried inside the vessel? Couldn't they be in a compartment at the back and they could just disconnect this whole compartment and clip a new compartment inplace?
13:00 Astro backyard and Nebula photos 🧐
Hi @Fraser Cain - a question for you. Given the early universe was a gas of high speed particles and then atoms…how is there any local forces to get the atoms to congeal into gigantic clouds of dust that can then form stars? I’m mystified as to why the atoms would coalesce and not just keep flying about in blissful solo motions? I get that gravity is a thing - but it would have been all uniform so no particular gravity hot spots. What am I missing?
The early universe was not totally uniform, even back then, there were places which were more dense than the average and other places which were less dense. You can see these non-uniformities directly in the CMBR.
Great talk Fraser! So, when they remove the old gyros off of Hubble - do they bring them home and test them to try to find out what went wrong? Does anyone know why they keep failing? Inquiring minds want to know...
Hi Fraser, here you announced that "black holes can kill star formation in a galaxy", but isn't the jet of outgoing gas itself the raw material to form stars and planets? Got confused here, can you develop this?
Hi Fraser, why do all supermassive black holes end up in the middle of their galaxies? Do the bigger stars end up in the middle too?
The do not "end up" there, they form there - due to the simple reason that most stars and gas clouds are concentrated there, so in that place, they could form fastest.
Hubble is still in safe mode…clock rollover went ok though.
There can be only one this time ;)
Hubble bubble toil and trouble !
Is Chandra XR observatory still getting cancelled? Their website mentions nothing about possible defunding and acts like all is normal.
Could you use something like a balloon as a solarsail to slow down space debris at its highest orbit point? You won't need much gas to inflat a balloon in space i guess. No mechanical parts except something like a valve.
Can ADRAS-J act as a gravity tractor? Are there plans to measure its effects on the orbit of the space junk?
Hey Twila! Where have you been?
I think the countries that put the space junk up there should be responsible for removing it. As much as possible anyway. The smaller junk should be an international effort.
Would be nice, but won't work in practice. A month after such a treaty is signed all the commercial launches will be registered to some country that doesn't sign up for this.
@@ericsmith6394 I was just dreaming of a world where everyone actually gets on...😭
Thanks for waking me up! I guess one day it will be too dangerous to leave earth and the great days of space exploration will be gone!
Hi! Does anyone remember a sci-fi story about an astronaut who is immobilized in ice on Pluto, and who wakes up whenever the sun rises? Reminds me of slim doing sort of the same thing.
What horse head?! I see a headless man with a club in one hand and bright light in the other.
hahaha
Entropy always wins.
Instead of sending a team up to Hubble with replacement gyros every time, why not send a crate of 20 and a robotic arm to bolt onto the side of the telescope? Then we could just replace the gyros from the ground and essentially never run out.
imagine it’s a couple hundred million years from now. aliens come to check out the earth for life, we’ve basically been erased so they decide to move on. as they’re leaving they take a look at the moon and find a lunar module upside down on the surface.
Fraser, what is it about the gyros that prevents them being made to last 100+ years?
Natural wear and tear unfortunately. Plus, these are gyros manufactured in the early 80's - material science and development has since advanced quite a lot in the 40+ years since they were installed and if it was possible to replace them with brand new ones, those would potentially extend Hubble's service life well into the 2050s/2060s
How would you even know if Jupiter is tidally locked? I'm not convinced the label should even apply to gas giants.
The pointy star in the JWST Horse Head Nebula picture is not visible in the Hubble picture…what’s up with that?
The telescopes see in different wavelengths. Something bright to one often isn't bright to the other. This is usually because of dust, but can also be because of temperature. The hexagon mirrors on Webb also create the pointy artifact. It isn't pointy in real life. This is a common issue with camera mirror and aperture shape and they can remove it by image processing for science work. They leave it for pretty pics. Hubble has a circular mirror, so no points.
0:40 Is that a photo? You said they could directly image exoplanets now?
No, that's not a photo. All images we have of exoplanets still are only tiny blots of light.
@@bjornfeuerbacher5514 Thank.
Why does Hubble use mechanical gyroscopes instead of laser gyroscopes? Do the laser gyroscopes not have enough accuracy? Even if this is so, would it make sense, should there be a new servicing mission, to include both laser and mechanical gyroscopes, to preserve at least some functionality should all the mechanical gyros fail?
I think the reaction wheels are what failed, they are used to steer the vehicle in 3 dimensions, thus needing 3 working wheels.
@@JohnShalamskas 👍
@@JohnShalamskas No, this video makes the distinction between reaction wheels and gyros (5:50), and other sources I've read also agree we are talking about gyros.
You can say that galaxies with black holes have “cancer” ))
If we were to travel through a wormhole, A) How to do you escape the inner horizon of the black hole in the parallel universe and B) How do you confirm the success of the mission if nothing can escape the inner horizon of the black hole in our universe?
As far as I know, a wormhole connects a black hole to a white hole, so you would be spewed out automatically.
Could SLIM be surviving because the bottom of the spacecraft is pointing to the sun for 14 days and absorbing enough heat to keep it alive through the 14 days of darkness? Maybe residual propellant is absorbing and storing the heat and re-radiating enough of it into the batteries and computers to keep them alive through the night?
JWST can see all that and at 1/25th of Mercury-Sol distance from a star....? That gets a WOW! from me.
Great episode Mr. Cain, superb.
With that supernova photo it looks like there may be a planet or something down in the 7 o'clock position away from the neutron star. 🤔 Maybe a star behind it the cloud shining though? Be really cool though if it is a planet.
How do you expect to see a planet on that scale!?! Have you any idea of what you are talking about?!?
The remnant is something like 100 light years across, so that 'blob' would just be another knot of gas. The neutron star itself is not visible in the image since it would be only about the size of Earth, and any planets would be lost in the bright central blob of gas just as the neutron star is.
Does the plane of spin of a super-massive black hole at the core of a galaxy necessarily match the plane of spin of the galaxy as a whole? What if it dosen't?
According to the picture made by the Event Horizon Telescope of the supermassive black hole of the Milky Way, its plane of spin does _not_ match up the plane of spin of the Milky Way.
Hey Fraser, I have a question regarding dark energy and expansion. So expansion is thought to cause photons to red shift... Is it possible it could be the other way around? Consider a photon moving through space for a nearly infinite timeframe. Eventually because of "expansion" the photon will red shift itself completely out of existence. Where did it go? It's energy has been lost to the vacuum. Is it possible that photons essentially leak energy into the vacuum as they travel and this is actually what is causing dark energy & the expansion of the universe. Photons essentially transforming into spacetime as they lose energy which causes expansion as we see it? Could this also be a possible cause of inflation prior to the universe being transparent? Because there were so many photons trapped in a smaller universe forcing the rapid expansion?
The expansion (and contraction) of the universe is explained and predicted by Einstein's general theory of relativity. As space expands the energy of a photon is reduced since their wavelength slowly expands as it moves through the expanding space. The energy is conserved in spacetime, and if the universe starts contracting again the photons will undergo a blueshift, and potentially will gain all of their lost energy back. It's a question of cause and effect.
@@tonywells6990 the universe is accelerating it's expansion and does not appear that it will contract. So the vacuum does appear to eat photons on long enough time scales, as far as I understand it anyway. The question is exactly that of cause and effect. Could energy and spacetime be equivalent such as energy and mass are, and the loss of energy by photons (red shifting) is infact what's causing the expansion.
@@Dolemite23554 There is no evidence that the electromagnetic field can induce expansion of spacetime, but there is evidence that spacetime causes the expansion of electromagnetic waves. Could this change if we develop a theory of quantum gravity? Probably not.
What can we surmise, and investigate with computer modeling, exists inside the event horizon of a black hole, specifically, what happens when a Neutron collapses under gravity?
So a second stage is floating in space. It has engines, tubes, wires and a large fuel tank. Why throw it down to Earth? Can't it be salvaged for spare parts or metal and be re-used in orbit? That would save us from launching all these tons of material from the surface.
👍👍👍
Why can't the devices going to the moon have a simple Flip-over lever to right themselves. We all fall down sometimes, It would be nice if we can get back up again!
I was talking about Webb with my friends and they were concerned about JWST hogging up all the usable real estate at L1. Is this a reasonable concern? Do they need to equip JWST with space guns to defend its territory?
Is that a real thing? Are people really worried that the JWST is using up more than its share of the L1? Is there some humanitarian satellite that now can't go, because JWST is hogging up all the space?
There are also people who say that the Vera Rubin observatory (and every Chilean observatory) is colonialism. I think some of these concerns are started by trolls, and the intended audience eats it up, and repeats it seriously.
I also wonder how many satellites we can feasibly put in L1/L2 with our current technology.
Afaik it is just a matter of how much propellant it will cost to stay there and at the same time avoid crashing into each other.
From the top of my head: These satellites are on an orbit shaped trajectory around L2 wich is unstable. They will fall in a heliocentric orbit if they're abandoned.
It isn't exactly at the Lagrange point. That would put it permanently in Earth's shadow. No satellite wants that, so the desired space is a large volume close to the point, not the point itself. There's no commerce advantage to being so far away. The only problem would be a satellite reflecting sunlight at Webbs cold side. Probably never going to be an issue.
how and why do they fail, which components?
I think other TH-camrs have gone into gyro fails. Veritasium, Scott Manley, or Curious Droid maybe. I don't know the whole answer, but part of it is that in atmosphere metals get an oxide layer that keeps them from sintering as easily. This doesn't exist in space, so when a cosmic ray drops some energy in the bearings they can create microscopic welds. This can also happen with metals in contact in vacuum. Do a search for cold welding in space. It's a problem for bearings and hinges in general, not just gyroscopes.
Thanks for the answer, it was not what I was expecting, really interesting. I'll definitely look more into it now. TA.
Super massive black holes only account for 1 percent of the galaxy… 🤯
Question for the Q&A show: if Webb can take pictures of the planets in our solar system, why can't it take pictures of Betelgeuse?
Betelgeuse is too bright for the sensors on JWST. The planets in our solar system are also very bright but the light is more spread out and so each pixel is not as overloaded as it would be if it imaged Betelgeuse (the image of Betelgeuse would overload a single pixel). Also they imaged Jupiter using sensors at the edge of the camera that are not as sensitive to light and formed a mosaic from these sensors.
You can see the horse head nebula with a backyard telescope!? Every time I watch one of these I want to get my own telescope
You'll need to image it, otherwise, you won't be able to see it through an eyepiece. I haven't see it through my 8".
I have glimpsed the horse head nebula through a 14 or 16 inch Newtonian telescope. You need a dark sky too. That telescope collected enough light to see some color in the Orion nebula.
@@JohnShalamskas Was it through an eyepiece? Because I haven’t been able to see it through my telescope, but of course I’m in light polluted area.
@@billionsandbillionsofstars Yes, through an eyepiece. It was on the West side of Oahu before it got heavily developed.
@@billionsandbillionsofstars Oh, and I should mention that a 16 inch telescope is not portable, it is luggable.
What will NASA do to Hubble when it's finally decommissioned?
Is it not a mad idea the technology of the Gyroscope all came from a toy ... Not only that I saw a documentary about Eureka moments and it had Avi Loeb on it and he was asked by another production team to come out of the shower as a homage to that Eureka moment . Prof Loeb being him wasn't having any of that ...Anyway it then took to another scene where the guy who got the flack from the media about hubble. He was also the guy who thought of C.O.S.T.A,R,S. ... He got the idea guess where ? In the shower he got it from the shower head adjuster you know up down and fold down ... He got that idea in the hotel shower just before going to get roasted again by astronomers and the media ...
There's no clouds on the day side? But as a gas planet, isn't it made of clouds? So what's there, nothing? Is the planet shaped like a half-sphere? Is there land underneath the clouds?
Re the space debris, absolutely they are made from very expensive materials. Shouldn't they be placed in a stable orbit altogether so that they can be recycled later when the tec allows it
I can imagine future resource mining will be from earth large garbage dump sites and orbit
What would "clear skies" even look like on a gas giant? Is it just that the clouds aren't stirred up on the far side so you'd have to go closer to the core before it got "cloudy"?
I'm thinking the upper clouds are evaporated by the intense heat of the star.
When are metric bathroom scales coming out due to the fact that we have gone all in on the metric system ?!
In the UK our scales have both kg and lbs
Our cars read miles and kilometres
Duality is a thing.
I'm Canadian, so we've been metric all my life.
USA should be using the freedom French metric system and not the British Imperial system of lb, feet and miles. 1776 and all that!
@@tonywells6990 they should have thrown a load of umbrellas and bowler hats in the Boston River all them years ago, and saved themselves some good tea.
Missed a trick there, tea is lovely.
I mean, I agree with the sentiment and all that, but still, that's a waste of some good tea.
The real SLIM-shady is not in fact, Eminem.
❓️I've got a question you won't be able to resist❗️❓️ What's the difference between a gyro and a reaction wheel❓️
And don't say you can't eat a reaction wheel.
How the Hell does a gas giant of any temperature have clear skies? it'S a gas giant?
Is our growth of infrastructure enough to outpace with global warmings negative effects?
Our per Capita greenhouse emissions are dropping. So it just depends on what kind of infrastructure we build. Rapid transit, solar farms, etc
Sadly, Hubble's gyros is the least of it's problemas, because IS deorbiting, people! At this point Hubble is already below the Starlink shell. Without a mission to boost it to higher orbits, It will burn out into the atmosphere in few more years. And right now, NASA IS throwing all the money into Artemis' maw, so... It doesn't looks good...
"Debris Removal". Reminds me of Steve Carell and John Malkovich chilling out at the terrace 😂 th-cam.com/video/VfVKH2pLuiY/w-d-xo.htmlfeature=shared
Hi❤
When you read the names of Patreon members mid video it seems like you’re trying to punish those of us who can’t afford to contribute. You are the only creator who does this. I’ve never even heard you say that you appreciate likes or comments. What’s up with that?
You have an educated viewership, not sure this is an issue, but is it possible to label images as actual or artist-made or CGI? I can see some viewers being misled.
Greetings from the BIG SKY of Montana.
How's Milky Way looking from your part of the world?
@@billionsandbillionsofstars Greetings from the BIG SKY. Milky.
Can't we make better quality gyros? Just about everything is made to break earlier than previous items. But space is unforgiving; we can't use the standard $60 gyro in a spacecraft. With more _pay_ they should also last longer. Modern gyros are sealed inside a fluid. Early spacecraft needed only one gyro. Or was that three in one? Anyhow; why can't NASA get more durable gyroscopes?
🚀🏴☠️🎸
I think it is the reaction wheels that are steering the telescope. Gyros can be made with lasers that do not have moving parts.
0:30 Is this an actual photo? If not, why is there no caption saying so?
Definitely not an actual photo.
Fraser probably expects his viewer to recognize for themselves what is an actual photo and what isn't. ;)
Our magnetosphere is yet another reason why, at least in our galaxy (the only one we'll ever actually be able to explore), we are probably the first life to make it this far.... especially the first to begin to venture out of our planets gravity well.
sunscreen my dude, looking at the sky is fantastic, but the UVA and UVB radiation is not a joke for your skin
Oh I wear it. I just turn red
You're blasting TikTok mid-screen text during the first minute to (hopefully) hook the 12yr-olds?
Please for the love of god stop doing the name spam thing. Why did this become a thing?
These people pay for the videos. Seems polite to thank them. Better than a two minute long VPN sponsorship message
@@frasercain I also donate to your (and other podcasts), and it's because I appreciate the content you're making, not to get 3 seconds of internet-fame.
On the contrary, I value my privacy enough that i really wouldn't want my name tossed out.
I might be alone in that though, is this actually something people have been asking for? It just seems really, really strange.