Christmas Pre-Record | Mankind’s Finest Instrument
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Summary
The first image from the James Webb Space Telescope has been taken by the first telescope in the cosmos, and it's the first image to be taken by a telescope in space. In this episode of The Dark Side Of, we look at the history of space telescopes and their impact on our understanding of the cosmos.
Transcript
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can we talk about the james webb space telescope i want to talk about the james webb space telescope
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real quick that's fine by me cool i think it is the best thing ever isn't that what exactly what
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you say in this article that we've got not this one i wrote another one oh okay when it launched
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i wrote an article calling it the best thing ever i quite literally exactly mean that uh it's the
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best thing human hands have ever created is whenever you talk about it it's the most you
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ever seem like you're back to being a child in a toy shop no definitely i do have um some sort of
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childlike wonder yeah and i don't mean that as an insult but no no i don't i mean it's good to see
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the sort of enthusiasm because in these sorts of times there's it's difficult to get excited about
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things this is a white pill yeah no black pills for me today um so as i mentioned actually in one of my
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last seconds uh man mankind is a tool building ape like whether it was something in the order of
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three million years ago some sort of ape which isn't even true homo sapien at some point realized
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it could use tools i mean even modern chimpanzees and bonobos and um orangutans use very very very
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rudimentary tools sometimes like use a little stick to poke down into a termite or ant mound and to get
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them out and then eat them things like that that's still clever compared to most animals yeah right
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yeah so at some point three odd million years ago do you ever see the film uh 2001 a space odyssey
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of course when they show that like some sort of uh ape um using like the jawbone of a dead animal or
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maybe a thigh bone or something and yes that is the precursor to all invention and modern creation
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was in all likelihood um development of weapons and that was just finding something that would give
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you an edge over the next tribe over i mean simplified there's a meme that i see every so often
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which is of a um ancient man-like ape holding a rock and it just says too bad food chain i've just
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learned how to throw a rock yeah you're all screwed now well because you say weapons but that's just a
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tool isn't it yeah so it's just a tool at some point the ape creature our ancestor realized it
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could manipulate the environment around it it didn't just have to merely exist with whatever
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the elements through it it could actually manipulate the world in some small way um fast forward to now
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and we've got space telescopes i do think they're well they're sort of the most precise instruments
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we've got by some way and there are dozens or have been certainly dozens and dozens and dozens
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of space telescopes people will almost certainly have heard of hubble and maybe a few others like
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spitzer or something but if you go on wikipedia and look up the list of all the ones that have ever
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been all the ones that's gone up there's dozens dozens dozens is there one near manchester
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a space telescope near manchester no no i must be misremembering something because i remember
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always taking the train to manchester when i was going to university and there was a big
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it looked like some kind of observation dome oh i'm sure there was that on the way but but but
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by space telescope by definition it means it's in space oh is there an observatory near manchester
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yeah i'm sure there are that might be right might be what i was thinking sorry but when we say space
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telescopes we mean telescopes that are are in space i am a complete troglodyte on this subject so
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please forgive my ignorance no worries yeah no of course of course if i can bring the wonder of space
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telescopes to people out there then i'll be happy i've done my job um i did see once a tweet from
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uh graham hancock saying people haven't really created anything genuinely new for centuries and
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centuries and i was like uh space telescopes he didn't he didn't respond he'd probably be like oh
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well that's just a telescope in space isn't it there's no difference it's just in space the first
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time galileo ground a lens and realized he could magnify an image a bit there's no difference between
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that and james webb there you go same thing anyway um so yeah james webb went up what a couple years ago
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now and um it has been sending back images and science of all types and it really is the cutting
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edge of our knowledge of our knowledge of the cosmos um is there anything better more wondrous
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than that i don't know i don't think so um and it has done and will continue to show us
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the edge of forever that's a kulsagan line that's not my line um and i wrote this article
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what a couple couple years ago two and a half years ago now and it was right when it just went
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up and was first starting to send its first images back is that the first image or one of the first
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image but it's among the first yeah so what is that that we're seeing what's all of the uh where
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does the yellow hazy coloring come from well so okay so well it's just a nebula uh but the coloring
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is okay that's one of the more difficult things because they have to essentially sort of pick what
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colors they're going to show what the real real color of it is is difficult to say because the
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human eyeball can only deal with a certain small spectrum of colors right um so basically this is
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what uh whenever you get an image on some level nasa have fiddled with it a bit to make it look
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the way you eventually i expect there'll be all sorts of filters on it so sometimes
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uh not just with james webb but for hubble anyway there'll be an image of a particular galaxy or
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nebula or something and they'll there'll be multiple versions of it with sort of different
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color grading on it um and you these space teleco space telescopes can see things in different
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um frequencies of light so there's the visible spectrum then there's obviously the infrared and
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ultraviolet as well um and james webb is an infrared telescope first and foremost so you can see the
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longest most stretched out light that's why it can see back to almost the dawn of the universe
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it's because with the expansion of the universe light itself has been stretched out by the expansion
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of the cosmos light itself has been stretched out so the wavelengths are too long
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for the human eye to see so you need an infrared sensor to to see it and then as i say nasa the
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bods at nasa will translate into an image that we can then see on a computer screen but it's actually
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wouldn't be visible to the human eye with the best will in the world that is pretty amazing yeah yeah
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yeah no wonder you get so excited about this stuff it's like it it's it feels almost supernatural
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to be able to see into something like that right yeah because as fast as light is it's not infinitely
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fast so essentially you're looking back the further back further through space you're looking
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it's the further back in time you're looking it's like it's the closest thing to a time machine
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so when we see when infrared light hits the james webb space telescope sensors from 13 and a half
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billion years ago you're looking back that light left where it originated from 13 and a half billion
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years ago so you're looking back in time you're looking back to the dawn of time you're looking back
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to the edge of forever if you like um so if i can quote myself like all good narcissists do um i said
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since before the dawn of civilization men have gazed up at the twinkling lights in the night sky and
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wondered at them we've always been enchanted and mystified by the stars they are beguiling and
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beautiful unimaginably violent and yet the origin of all life they are disquiet disquieting disturbing
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yet fascinating um yeah because i've gone later to say that um there is something you know obviously
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i think wonderful mesmerizing almost about looking up at the stars knowing that the light is impossibly
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ancient and the knowledge that when we look up at the night sky we're seeing light from who knows how
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long ago of dying stars maybe maybe but when the ones that are visible to us to the to the naked eye
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um are not that far away in the scheme of things all right maybe a few at most a few million years
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light years away um only a few million yeah yeah okay so on the on the timescales of stars lifetimes
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probably not but however still feels pretty long to me if you use a very powerful telescope or any sort
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of space telescope then at a certain point yeah almost certainly all the stars you're seeing are
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already dead not long ago um that's the nature of it it's crazy to think isn't it um but yeah this
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idea that you it's disturbing when you think about it it's let's say wonderful and beautiful but also
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disturbing when you actually think about it when you're standing outside looking up at the night sky
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other than the tiny film of atmosphere that there is over the earth when you look at the earth
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and how thick and deep the atmosphere is on the earth it's just a tiny film
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beyond that there's just infinity above your head stretches out infinity
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if you actually just dwell on that for a while you sort of well you realize how small and
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insignificant we are really in the scheme of things on the cosmic scale so to me that doesn't feel
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like small like small and insignificant it feels almost uh almost the opposite like we're special
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yeah well so far we've seen no evidence of alien life some people you know some people you said you
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said carl sagan uh wasn't it he who said that we are the universe looking back at itself
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yeah we are that's that's a more uh uplifting way of looking we are star stuff every atom in our bodies
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is made up of exploded stars our sun is a third maybe fourth generation star and all the matter
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that went into creating our solar system and therefore us and everything is comes from supernova
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or something along those lines so we are star stuff we are a way for the universe to know itself in fact
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i've got a quote here from the late great carl sagan he said the cosmos is full beyond measure of
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elegant truths of exquisite interrelationships of the awesome machinery of nature the surface of the
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earth is the shore of the cosmic ocean on this shore we have learned most of what we know recently we've
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waded a little way out maybe ankle deep and the water seems inviting some part of our being knows
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that this is where we came from i.e. space we long to return and we can because the cosmos is within us
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we are made of star stuff we are a way of the cosmos to know itself
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yeah and that sounds a bit 1970s hippy dippy but it's also perfectly true isn't it uh the great
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and if you if you're of a more religious mind you you could say that we're looking up at god's creation
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oh well there's no need to go there i know i know that you wouldn't say anything like that
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yeah there's there's no need to infer a crater in my opinion i i would say the opposite personally
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there dinkum the uh richard fineman uh talked about the inconceivable nature of nature
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um i mean fineman talked about how the when we look up at distant galaxies and star clusters and
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things um they they seem as perfect as a snowflake as organic as a dandelion seed
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um yeah and i and i think so um i say that we stand on the shoulders of giants the likes of
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euclid and aristarchus or kepler and newton um and where we man just apparently can't stop
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making tools we can't stop making finer and finer precision engineered tools we can't won't stop
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um and this is the state this is the nature of a faustian man as spengler would have put it
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isn't it we just we we are constantly curious yeah we need to learn more yeah even if sometimes it
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leads us down bad paths although i wouldn't say that necessarily uh looking introvert looking into
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and traversing space unless of course we do end up finding the event horizon and opening a portal to
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hell and return into doom world that would genuinely be quite faustian but outside of that incredibly
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slim possibility i i think it's um a wonderful and ambitious thing yeah i mean it's a double-edged sword
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isn't it man's curiosity just take for example a atomic research where it makes atomic bombs but also
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atomic energy you know the the research into flight because it's only a little over a century we've been
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able to fly we've been able to copy the birds both we make ships of war for bombing and also
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ultimately spaceships it's just amazing to consider that it was like you say just about a little over
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100 years ago where we were having the first planes and now we're already doing this yeah yeah
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spectacular like an exponential rise it's like a lot of things you see that in all sorts of ways
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um that uh from like the evolution of life to uh research into sort of computer chips it's like a
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very very very slow progression then there's some sort of tipping point and then the chart just goes
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through the roof um hopefully mankind i hope mankind is is past that tipping point and it's just going
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to go exponentially fast now um but okay i mean james webb just this year again this is supposed to be a
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little bit of a look back at the last year's worth of sweet images that jwst has sent back to us
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it's like a painting isn't it yeah and just on a purely aesthetic level it's beautiful yeah no absolutely
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yeah um oh is this the the different uh oh it's a different hubble hubble on the left webb on the right
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you can see the difference i mean hubble was purely optical light um and james webb can just see
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not just with more clarity but with well it's just superior in sort of every sense
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um so i thought we could just look through some of these again many of them are hubble and webb side
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by side because if you can see in the infrared you can sort of see through
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things to some extent see through dust clouds much more easily it makes a hell of a difference
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um yeah things that sort of you sort of boggle the mind um
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like that is is that real i mean i'm not really questioning if it's real of course it's real but
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it's like you almost have to pinch yourself is that even a real thing you know it's amazing
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amazing how throughout all of nature that kind of spiral that we see there the way it's twisting in
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is is ubiquitous you find it everywhere even even in space yeah incredible it's it's all it's in here
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and then it's out there as well it's amazing and if you drill down into the atomic subatomic world
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it seems it's very similar and one thing that blows my mind is um some people say some actual
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physicists say that um a black hole is in all sorts of ways like a single atom
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its properties are like a single atom in all sorts of ways um it's only got mass and spin
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and like not much else to it it's in terms of physics it's actually a really really simple
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thing although monstrous um terrifying to conceive the way we see uh as you say those patterns
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on different scales repeating themselves whether it's at the galactic or intergalactic scale
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in our normal world or in the subatomic um the same nature repeats the same sorts of patterns
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um and the way we see these things are just incidental it just happens that these things
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are that particular plane from our point of view you know so the last one we saw is sort of um
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head on to us and this one's obviously at a at an angle and it's just it's just by chance that
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happens to be you know in millions of years time it will be at a different angle to us but
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for right now um sorry i like the little description also known as the sombrero galaxy
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yeah sombrero yeah this one you could just pop on your head look galaxies colliding with each other
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in mid collision are quite remarkable because some people say we the milky way is going to collide
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with andromeda i did watch a thing just the other day saying maybe those calculations aren't right and
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we might miss each other this won't be for millions of years yet did watch something that they're saying
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maybe they won't actually collide but i think still most people think they probably will
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but it turns out that um most stars won't actually hit each other
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um it's like if there was a swarm of bees and you shot a shotgun
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most of the bees would be fine wouldn't get hit by the pellets you know um but still
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what an image yeah two galaxies sort of splashing into each other whether the the supermassive black
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holes at their core will eventually collide rotate around each other and eventually collide and form
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an even more massive supermassive black hole um so look here's uh here's hubble's attempt
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to view the sombrero and it's sort of washed out by light in all sorts of ways
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um i actually think the hubble image in this instance is sort of more photogenic it's not really
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the right word but certainly web can see more can see more detail there's no doubt about that
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there's no doubt whatsoever on that score um so if anyone's even remotely interested i would advise
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people to uh look this stuff up for themselves getting watch videos about james webb and what
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it's doing um because it's going to be up there hopefully for quite a few more years
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you know 10 maybe 20 years some it could get hit by a micro meteor and get damaged and be out of
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action tomorrow or it could go on past its predicted lifespan which is a few years to 10 odd years
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but some nasa missions go on long after that they expect it to burn out and die so some are saying that
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maybe hopefully james webb might be sending back science and images for closer to 15 fingers crossed even
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20 odd years and of course there are plans to build the next generation even bigger better one
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um and just one last thing say it just it doesn't just send back images of like wonderful galaxy
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structures um but it also has it was able it does look at like things in our solar system like really
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good images of um jupiter or something i'm sorry some of these images this this one right here and
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this this one right here in particular and some of these you mentioned 2001 a space odyssey
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this is like straight out of the psychedelic sequence at the end of that right this is when uh
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what dave i think the main character is traveling through who knows what to get to the monolith
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that's that's amazing you're hurting me dave i can feel it oh yeah look at that that one actually
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happens to be it says it's an artist's impression oh okay oh yeah artist's concept to be um not sort
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of entirely real if you like oh but still um yes keeps keeps going down for a bit uh yeah you can see
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some of those are sort of stretched out images it's stretched out well that's to do with um gravitational
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lensing between us and that those stars or galaxies is something extremely massive like a black hole or
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something and so the light has bent around oh yeah you can see how it's warping right it's more in the
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larger image here yeah and of course it's warped but what it does mean is that we can see light from
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even further away even further away than we would otherwise have been able to so that light is sort of
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truly impossibly old billions and billions of years old those stars are probably all dead
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now i'm stretching back to close to the dawn of the universe um i just think it's uh absolutely
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remarkable i i i don't know how people aren't interested in that sort of thing i don't get it
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but then i'm sort of quite an inquisitive person i'm interested in all sorts of history even sort of
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crop rotation in the 13th century will interest me so it takes something extremely dull and boring
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before i switch off out of boredom so something like this looking back to the the dawn of time
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looking back to the edge of forever um of course i'm fascinated by it um just endlessly fascinated by
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it um and i hope i do hope that um it's fired the imagination of at least one person out there
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that goes away and uh looks it up for themselves and and is amazed yeah i'll have to look a bit more
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into this because uh these pictures are awesome look at that see that looks like an eyeball
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yeah there is an iris right in the middle yeah yeah there are a few stars and star clusters where
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people they've given them names and they're things like the eye of sauron or whatever not that but
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things like that that would be quite ominous it's just the eye of sauron that we're staring into
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looking back at us yeah no big deal just just a real eye of sauron much much much bigger cosmically
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bigger than tolkien could ever imagine probably more powerful merry christmas and a happy new year
00:22:35.940
and what you should be doing is using your new lotus eaters gift subscription that new feature we've
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got on the site to watch all of our premium content where you've got lots of downtime over the holidays i
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we're putting out thank you very much for watching have a nice holiday and goodbye