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The Future of Space Telescopes

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The mysteries of our universe seem limitless. However to unlock them, we’re going to need some incredible technologies to peer deeper and more sharply into space time.
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Previous Episode:
• Neutron Stars Collide ...
The Kepler mission has determined that terrestrial planets - that is, rocky planets like our Earth are extremely common, and may orbit most stars in the Milky Way. But these planets are extremely difficult to directly image because they’re dense and small. Our Sun is about ten billion times brighter than Earth. Train a distant telescope on us, and it will be overwhelmed by the Sun’s rays. So how can we find terrestrial planets around stars light years away?
Written by Alex Yep and Matt O’Dowd
Hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Kurt Ross
Assistant Editing and Sound Design by Mike Petrow
Made by Kornhaber Brown (www.kornhaberbrown.com)
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Опубликовано:

25 авг 2024

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Комментарии : 1 тыс.

@zanshibumi 7 лет назад

"Once seen as a fundamental limit." is the most inspiring string of words I can imagine. It's hope vs impossibility.

@nmarbletoe8210 4 года назад

nicely said! the diffraction limit is also being transcended with metamaterials, for microscopes.

@dougsteel7414 3 года назад

It's true. I apply the same philosophy to eating.

@ianbuilds7712 3 года назад

"as we approach the limit we only push it further away"

@robindanielsson1588 3 года назад

@@nmarbletoe8210 jag är på Berns mark och miljödomstolen har du sett den här gången är du är det är inte så bra mycket bra med

@robindanielsson1588 3 года назад

@@nmarbletoe8210 jag är det bara bra tack så jättemycket jag jag har du för något med mig på på på en en bra idé och jag har du sett allt gott och jag behöver behöver du hjälp mig och det

@TheStef1309 7 лет назад

So I just wanted to thank this channel for being one of my inspirations to study physics at university. Starts in a few days.

@TheAdmiralBacon 7 лет назад

Good luck! Physics is hardcore stuff, don't fall behind

@poseidone5 7 лет назад

Good luck bro! If you have true passion and study hard, you will certanly succedd! If I could go back in time when I was 18, surely I try to study physics instead international economy. By now it's too late, so I study physics by myself some good books written by great italian physicists like Rovelli (one of fathers of loop quantum gravity) or Tonelli (director of CMS at LHC when Higgs mecanism was discovered), watch tons of videos like this and sometimes I go to university to listen to the physics lecture and I love it! Excuse for my english but im italian 😀

@feynstein1004 7 лет назад

Good luck, mate. Looking forward to hearing your ideas :)

@guspus3050 7 лет назад

+ Good luck!

@HB-jf6yq 7 лет назад

TheStef1309 All the best to you. Please do come back and let us know how it was like, aha.

@Sforschondetta 7 лет назад

Universe: Our stars will blot out the planets! Man: Then we will observe in the shade. . .

@nmarbletoe8210 4 года назад

awesome

@MouseGoat 4 года назад

My god yes! This Could Make for one heck of a awesome T-Shit PBS Space Time , get On this! XD

@realzachfluke1 4 месяца назад

Hahaha pretty much!!! 😂

@kcwidman 7 лет назад

I had the Q&A part playing in the background and almost fainted when I heard him say my name. I was so confused for a few seconds. I GOT A COMMENT FEATURED ON A POPULAR RU-vid CHANNEL! I can mark that off my bucket list.

@jetison333 7 лет назад

Kai Widman haha he read your comment right as I read this XD

@neffarion 7 лет назад

You can just turn off lens flare and lower the lighting detail in the gfx options

@ferdinandkraft857 7 лет назад

Vasco Serrano flat earther detected?

@neffarion 7 лет назад

wut? no brain detected?

@cobblie8789 7 лет назад

Ferdinand Kraft it's a Joke, don't you get it

@Player1original 5 лет назад

Gamer detected

@SanketBerde 7 лет назад

I love how the episode always ends on the words "Space Time" :)

@jonnorris4204 3 года назад

This channel just set a new record! Just 21 seconds into video, a 15 second un-skippable ad interrtuped. I didn't think that PBS interrupted content with ads.

@whirledpeas3477 2 года назад

It's all one giant advertisement

@MatkatMusic 7 лет назад

that thumb healing factor at 10:59 tho... #wolverine lol

@anthonyshort6699 7 лет назад

Lol good eye

@rapter3567 6 лет назад

lol nice catch!

@my1rule 6 лет назад

Too funny

@APAstronaut333 5 лет назад

God has left the *chat*

@agiar2000 7 лет назад

Fascinating! I am so proud of our scientific community!

@fernandoferreira6293 2 года назад

Me too. From diametrical reasoning.

@Frahamen 6 лет назад

Here's an idea: finally launching James Webb Telescope!

$@fractal5764$

@fractal5764 3 года назад

Ah, 2 years ago.

@bragapedro 2 года назад

Ah, 3 years ago.

@SciFiMangaGamesAnime 7 лет назад

Flower satelite for our eyes to reach the other stars. Pure poetry.

@lowstrife 7 лет назад

And now for something completely different Nice nod :)

@adamdecoder1 7 лет назад

...a man with three buttocks

@TheRealReTox 7 лет назад

That Parrot is dead. No it isn't Thump thump thump

@JM-us3fr 7 лет назад

I have no idea what's going on

@animistchannel2983 7 лет назад

I also liked the moment where the image of the scientist (Dr Cash?) popped in from the top of the screen like one of Terry Gilliam's animated characters. I wanted to shout "Dimsdale!" For new people, "It's!" Monty Python references, the origin of geek culture conquering the world, the holy grail of smart humor for scientists engineers and martial artists.

@_serkancetinkaya 7 лет назад

Nobody expects the Spanish ... wait. Wrong post.

@AidenOcelot 7 лет назад

"Now for something completely different" *Explodes*

@seamuscallaghan8851 7 лет назад

That star shade is beautiful.

@Alienrookie 7 лет назад

Physics on RU-vid: 0 dislikes - I got faith in humanity!

@AndrewKimmey 7 лет назад

You should seriously consider doing a podcast, going really in-depth on certain topics. I love listening to you while I'm working in the kitchen or just laying around the house, but ~10-15 minutes just gets my appetite for astronomy/astrophysics/particle physics worked up, then I start craving more.

@911gpd 7 лет назад

Please Government, fund those magnificent projects rather than a small fraction of the Army's budget.

@CockatooDude 7 лет назад

I really like these more engineering oriented episodes.

@redbeam_ 6 лет назад

me too!

@ProperLogicalDebate 6 лет назад

At just before 12:00 you mentioned Space Time Fabric and that got me back to the thought of Ether or Aether.

@michaelvodinelich2462 7 лет назад

My favorite episode in the last few months. Thank you PBS.

@unconqueredsun6903 7 лет назад

All I can hope for is to be alive when/if the first images of these telescopes come available. I do hope Starshot happens as well for the next generation. :)

@lesliejohnrichardson Год назад

This comment aged quite well (if you are still alive) lol

@unconqueredsun6903 5 месяцев назад

@@lesliejohnrichardson I do, indeed, still live! \o/

@johntammena1128 7 лет назад

Those Starshades look like Thargoids.

@Tr0ll_m4ster 7 лет назад

That opens space for a great conspiracy theory

@ScoriacTears 7 лет назад

Roll on 26th, Cmdr RadSparrow out.

@dotnet97 7 лет назад

Was thinking the exact same thing.

@Incubus4r4 7 лет назад

Yup!

@stiimuli 6 лет назад

If only it could make the same sounds

@hellfirelordofevil 7 лет назад

The glitter cloud concept sounds like a very effective way to fill the orbital volume of the earth with dangerous debris

@EricLehner 4 года назад

Slower and calmer pace of this presentation was helpful to me as a non-scientist.

@crimsonnin2 7 лет назад

So the N in NIAC stands for NASA, another acronym? Shouldn't it be NASAIAC? Nasa isn't a word! Wait, this isn't PBS Grammar Time...

@dukefrywokker6470 7 лет назад

An acronym is a word or name formed as an abbreviation from the initial components in a phrase or a word, usually individual letters (as in NATO or laser) and sometimes syllables (as in Benelux), that can be pronounced as a word.

@lewismassie 7 лет назад

Well PHP stands for PHP Hypertext Preprocessor, which is recursive too

@josephgroves3176 7 лет назад

crimsonnin2 Recursive acronyms. GNU stands for GNU's not UNIX. The GNU HURD stands for GNU's not UNIX HERD of UNIX replacing Daemons... You know what the H in HERD stands for? :) HURD... LOL

@jmpsthrufyre 7 лет назад

crimsonnin2 Maybe it was thought of by an acronymbecile?

@actinglikeseals 7 лет назад

crimsonnin2 LOL!!!!

@deep.space.12 6 лет назад

How does the star shade plan on maintaining alignment with the telescope and the distant star system while taking long exposure photos at (1) a much 'higher' orbit i.e. with vastly different velocity / angular velocity, or (2) tangentially ahead of said telescope but both objects will be orbiting in an arc?

@SophiaAphrodite 2 года назад

math

@Anshul2395 2 года назад

@@SophiaAphrodite You just explained all physics. Thanks!

@garyharrison4915 7 лет назад

What an amazing time to be alive.

@MonsterJuiced 7 лет назад

This small doc is awesome but does anyone else find it a bit unsettling how Matt speaks in such a well thought and well rehearsed manner? his smooth expressions for almost every sentence and not a single "erm" "um" or pause for thought. Just a perfectly moderate flow almost in keeping with a precise 1 word per 0.6 sec time signature.

@garethdean6382 7 лет назад

He either has a rehearsed script or he's a terminator.

@MonsterJuiced 7 лет назад

Gareth Dean basically :p

@TheExoplanetsChannel 7 лет назад

Who else think this channel should get a lot more views and subscribers?

@janegeland7596 7 лет назад

they have a million subs, that's a lot already..

@GJ-dj4jx 6 лет назад

It's all about the accent

@edthoreum7625 6 лет назад

too esoteric for cowboys in the plains?

@buddhamack1491 5 лет назад

@Falc1NL That just means you aren't really listening. If you are thinking while listening then you aren't fully present. You need to train your concentration.

@lucasthompson1650 5 лет назад

@Buddha Mack I've watched and listened to most RU-vid content (podcasts, presentations, panels/debates, interviews, etc) at 1.25x … 1.5x if it's an audiobook … ever since the playback speed feature became an option and I have no problem "really listening". The only time I really watch anything on here at regular speed is if the content is mostly instructional, like DIY project instructions, courseware material, university lectures, or Khan Academy-style educational videos - or if I'm with a group of people, who are far less impatient than myself, and we're all watching something together. 😎 Regarding subscribers, as of May 21, 2019, this channel has 1.6 million subscribers and this video has just under half a million views - that's pretty good. Maybe I'm too much of a Gene Roddenberry (or John Lennon) fan, but every once in a while I still catch myself daydreaming/imagining a world where RU-vid channels like @PBS Space Time would have ~5.5 billion active subscribers, and every video would get at least ~10 billion views within it's first 12 months, and the most popular "reality TV" shows are the live feeds off ISS and the various space telescopes. 😌 "… and no religion too."

@eluherrahaz1165 6 лет назад

3:39 oh boy this looks so amazing! I wanna see such a think in front of james webb. Pls

@antimattv 3 года назад

How can some people downvote these videos? What on Earth were 245 people thinking? "Oh, no! The host is too clear and articulate!" "Oh no! There are helpful and amazing visuals!"

@TROPtastic 3 года назад

There's a theory that RU-vid adds a certain, random percentage of upvotes and downvotes to videos to reduce the effectiveness of paid likes. No idea if it's true, but it would explain neutral educational videos like this getting downvotes.

@Hunterxii 6 лет назад

How do these videos only have 300k views... When i was a kid i dreamed of being able to learn more about space

@erik-ic3tp 7 лет назад

Dear PBS Space Time, Is it possible to do an episode about the Kardashev scale? Yours faithfully, Erik de Wilde

@arisoda7497 6 лет назад

erik2000 ur 18 but act like a 60 year-old Mooi geschreven man

@feynstein1004 7 лет назад

I actually expected the Twilight music from Honest Trailers when he said glare. :D

@Master_Therion 7 лет назад

Four. Not, that I'm counting. Okay, I'm totally counting ;) p.s. I saw your comment about tribalism on CGP Grey's video. LOL good one.

@feynstein1004 7 лет назад

Lol thanks, mate. I have top comments on two honest trailers too, actually. :P

@jeffwells1255 4 года назад

Congratulations for a very inspiring episode! I've had a long-term fantasy of being put into suspended animation for 100 years at a time, then revived for one year just to see what progress has been made (or lost), and this process being repeated for at least 100 times until I had been an invaluable eyewitness to the next ten thousand years of history - or more if cryogenics were being improved along with everything else, and there would be any number of others doing the same thing. Who says this couldn't be done, the same people who swore that we could never fly and were forever silenced when the time between the first powered flight and the first moon landing were separated by a mere 66 years?

@wesleyrm76 6 лет назад

Dr. Webster Cash is an awesome name. Just sounds like the hero of a good Sci Fi story.

@twifosp1 7 лет назад

Since the shade and the satellite are at different orbital altitudes, and therefore velocities, how do they stay in sync?

@garethdean6382 7 лет назад

This depends on the size of the difference, even seemingly large distances can be quite small as a percentage of the orbital radius, which is what matters. A small enough distance can be compensated for with thrusters; or you can simply have them in differing shaped orbits, that's not perfect but allows them to 'align' reliably for long periods of time.

@twifosp1 7 лет назад

The video talks about the observer telescope sitting at 80,000km in front. Geo orbit is 35,786, so you're talking about a new altitude of ~115,000 km. Geo orbit speed would be ~3.1 km/sec and 115k would be ~1.8 km/sec. That's a deltaV of 1.3 meters per second. So given the side of the shade it would be only usable for about 10 seconds during the orbital period. I think it makes more sense that orbit is more like what Muup Muup said. Both are in Geosync orbit, so they have the same orbital period. The longitude of the ascending node would be ~80k difference so they would stay in sync.

@twifosp1 7 лет назад

That makes sense and is probably the solution (more on that in the reply to Gareth). Would be interested in hearing the specifics of the orbital mechanics of partner satellites in the next video though!

@TheBosama 6 лет назад

Imagine where these brilliant people would have taken us... if money and politics didn't stand in their way. Progress is held back by a monetary shield

@nmarbletoe8210 4 года назад

holy tamales if we funded war with 2 billion a year and science with 2 trillion and that's only three dollars a person.

@Ilandria. 7 лет назад

I like that star shades look like a kid's depiction of a sun. :)

@LouSaydus 7 лет назад

Charlotte Brown well the sun is a star and they aren't called STAR shades for no reason...

@BlackPantherFTW 2 года назад

With Webb about 6 days out after launch its really cool seeing it being talked about years ago

@Majinant 7 лет назад

3:53 I was like "Bro, it's gonna hit you".

@youngandsuccessful22 7 лет назад

Saraneth right I'm high af right now and I thought the same 😂😂

@SupLuiKir 7 лет назад

What if you tried to get as close to "infintely many" concentric aragascopes as possible by making it out of a engineered material, in much the same way we can make glass that polarizes individual photons that pass through it and yet appears as a single object on macroscopic scales. What if each concentric circle's thickness was no longer than that of the longest target wavelength of light you wanted to capture with the aragascope? I think this would give you the same intended diffraction edge qualities while maybe only blocking half the light instead of nearly all of it. The obvious disadvantage is it's probably no longer fold-able, driving up the cost of launching it into space, although this disadvantage might not be the case, we can engineer materials to be flexible.

@mattsmith7962 7 лет назад

· 0xFFF1 This comment is smarter than I am

@ito726 7 лет назад

you might have the luck of being able to manufacture it directly in space. but you might have the bad luck of it being so fragile that even outer space is too chaotic for it, with all the wind there. (solar wind)

@UpcycleElectronics 7 лет назад

Instead of focusing on a full circumference, what if we created an adjustable window near the edge. This window would be the only source of defraction light. Then spin the aragascope and record the analogue data stream to reconstruct later much like a vhs tape recorder. This could enable many different lenses or filters that could carousel in front of the window.

@marendur 4 года назад

I hope I can live enough to see each and every one of these projects fully functional on space (I'm 36 by now).

@AnEvolvingApe 7 лет назад

@3:57 it looks like the opening starshade is ripping open the back of his leg... but he ignores it.

@feynstein1004 7 лет назад

If only we had a cheaper way to get things into space. Space observation would explode with probably thousands of telescopes in orbit. It'd be comparable to the Industrial Revolution. :)

@danlotroth9231 7 лет назад

Feynstein 100 type launch your own satilight into your favorite search engine. Is amazing what you can fit into a kg of mass. Specially when you can engineer without having to compensate for gravity. (Ie struts made from straws). Albiet has to be folded first.

@garethdean6382 7 лет назад

I'd be worried if any Tom Dick or Harry could send up their own spy satellite, piece of junk or memento. What if things get too cluttered or a cascade of collisions makes space unreachable for 500 years? Its difficulty is a blessing and a curse.

@feynstein1004 7 лет назад

+negativlex Lmao dude

@feynstein1004 7 лет назад

+Gareth You could make the same argument about aeroplanes. They haven't been banned yet. :)

@KevinP32270 7 лет назад

space elevator or launch from top of a mountain!!

@MusiCaninesTheMusicalDogs 7 лет назад

But how would the light from the orbiting rainbow be collected? A simple camera would do the job?

@deusexaethera 5 лет назад

9:22 - "The pile of shiny grit is already as broken as it can get." CHALLENGE ACCEPTED

@jdc1957 6 лет назад

The Aragoscope is the most innovative concept, ideal, in years!!!

@devifoxe 7 лет назад

nice!!! a monty python reference!!!!

@pooshpoosh9232 7 лет назад

#PBSspacetime please make a video about how the electron degeneracy pressure holds up the metalic core of a dead-non neutron-star , and why some neutron-star cores can't heat enough neutron degeneracy to win from gravity

@HB-jf6yq 7 лет назад

Putasso Putasso yes please

@danilooliveira6580 7 лет назад

its all so amazing, hope we could see any of those in our life time. and about the problem with the amount of light in the Aragoscope, can't you deal with that by using multiple telescopes orbiting in sequence and then just take consecutive pictures as each pass in front of the target ?

@Xollas 7 лет назад

I love this channel. The content blows my mind every time I watch it. Keep up the excellent work. Can’t believe they want to cut funding to this content.

@mikeoneil5741 7 лет назад

how expensive would a large telescope on the moon be?

@ADANTHEGIANT 7 лет назад

Why can't we see stars on the moon?

@PlaidHiker 7 лет назад

You can see stars on the moon, the cameras where oversaturated with the light reflected from the surface. Even if I'm wrong, there is always nighttime to to observations. And I'm don't really see any reason to send one to the moon, unless we can manufacture right on the surface, because the problem is getting them into orbit.

@BusterXXXL 7 лет назад

The moons gravity with the right amount of centrifugal force could be used to form quicksilver into a mirror with the optimal lens-shape. No atmosphere to worry about. But it would still have to be assembled on site.

@beaconrider 7 лет назад

Very

@qertsm 7 лет назад

two seconds too long.

@baardnaap 6 лет назад

yeah it was almost 420

@lordkalkiravi4986 7 лет назад

this is what youtube needs, youtube channels that are as good as tv shows in content and graphics yo

@TKnightcrawler 7 лет назад

Those are some incredible ideas! I imagine coordinating it all would be a nightmare, but it's just so awesome!

@shmookins 7 лет назад

This is my porn.

@Siran4228 7 лет назад

Shadow Heart you took the words right out of my brain🤤❤️

@MrN1c3Guy100 7 лет назад

so are you keep watching after you are "finished"?

@JM-us3fr 7 лет назад

You seem to have very specific sexual taste

@nachannachle2706 6 лет назад

+Shadow Heart I understand. So many exciting things happening so far away from you...Keep watching mate!

@helominousholo3537 6 лет назад

Shadow Heart kawaii desu mas

@MichaelWilliams-star-trek 7 лет назад

What about using our sun as a gravitational lensing telescope?

@AndyFordStL 7 лет назад

Michael Williams There' a whole book: see Deep Space Flight and Communications Exploiting the Sun as a Gravitational Lense

@chyndonax 7 лет назад

The sun isn't nearly massive enough to produce a useful amount of gravitational lensing. It would also obscure whatever you are looking at since it is so close and so bright at that range.

@DS127 7 лет назад

It's possible, but the focal length is about 550 times the distance from the Earth to the Sun. Neptune is "only" about 30 times as far from the Sun as Earth.

@AndyFordStL 7 лет назад

chyndonax actually there's some solid research that indicates the sun might be a useful gravitational lens. Search for 'focus mission gravitational lens' and have some readz

@AndyFordStL 7 лет назад

DS127 yep, the FOCUS mission would be a huge effort. That said, the possibility remains.

@brandonmanus 2 года назад

Watching this while they're tensioning the solar shield 4 years later

@ricardoabh3242 7 лет назад

Good one! I always think about what next!

@sighfly2928 7 лет назад

We actually have the technology to directly image exo-planets...so sad and frustrating that we will probably have to wait at least 10 years

@Plystire 7 лет назад

Links or you're just blowing hot air.

@romajimamulo 7 лет назад

Plystire well, the design is done, as shown in the video. However, there's no way it's going to happen quickly

@Plystire 7 лет назад

Apologies for picking at semantics here, but "Having" and "Developing" are two different things. Post-implementation is when you can say we "have" it. OP should have said "We're actually *developing* the technology" I also think it's strange for someone to find the development time of technology somehow "sad and frustrating". Impatient much? What's truly sad and frustrating (ignoring the obvious answer of "RU-vid comments") is NASA's abysmal budget.

@CyberiusT 7 лет назад

+Plystire : re: directly imaging exoplanets: Partially filled aperture interferometric telescopes: achieving large aperture and coronagraphic performance, Moretto, G., Kuhn, J.R., Berdyugina, S.V., Langlois, M., Tallona, M., Thiebaut, E., Halliday, D., SPIE Astronomical Telescopes and Instrumentation, 12 pp., in press (2016) Remote Sensing of Life: Polarimetric Signatures of Photosynthetic Pigments as New Biomarkers, Berdyugina, S.V., Kuhn, J.R., Harrington, D.M., Santl-Temkiv, T., Messersmith, E.J., International Journal of Astrobiology, 15, 45-56 (2016) Global Warming as a Detectable Thermodynamic Marker of Earth-like Extrasolar Civilizations: The case for a Telescope like Colossus, Kuhn, J.R., Berdyugina, S.V., International Journal of Astrobiology, 14, 401-410 (2015) Talks & Lectures Surface Imaging of Proxima b and Earth-like Planets by Dr. Svetlana Berdyugina Existential education, cosmic intelligence & the Colossus Project | TEDx by Dr. Jeff Kuhn Are we special? Searching for life in the Universe. | TEDx by Dr. Svetlana Berdyugina

@ballom29 7 лет назад

This is technology lag. Already on earth , each time we invent something, we usually wait several years or even several decades the time a reliable product using it is developped and manufactured. But on space? it's even worst, because even with a finished design you spend several months or years to certificate it, make sure the design is 300% flawless , wait for a launch opportunity , then depending on where the spacecraft must be you'll wait 1 day to several years.

@0dWHOHWb0 7 лет назад

fastest click of my life

@eriktempelman2097 7 лет назад

Amazing!!! This starshade-thing is something straight out of an Arthur C. Clarke novel, while the Aragoscope is even cooler. Cant wait to see this in action in my lifetime. Cheap too, compared to what Japan is alledgedly going to spend on anti-rocket defenses ...

@drdrsh 7 лет назад

This video got me more excited than all the "We will travel at x% the speed of light by year y". This seems really doable.

@alexkorocencev7689 7 лет назад

If the rainbow is orbiting Earth, does that mean that everyone with a hobby telescope can use it?

@garethdean6382 7 лет назад

Sadly no, there's issues with the 'gritty lens' and of course getting a proper line of sight and focus.

@fusiontricycle6605 7 лет назад

5 minutes and 432 views. Nice

@acetate909 5 лет назад

Sending a telescope into orbit is the culmination of humanities best qualities. Technical solutions aside, just the concept in itself is amazing.

@BYToady 6 лет назад

I always enjoy technologies that make all these scifi game mechanics I play obsolete.

@endtimesasmr2590 7 лет назад

Was anyone else weirded out by how he said "glare" at 1:39?

@rodrigoborges3876 7 лет назад

I think he had to say it without his accent to make it more clear, saying Glare with such a heavy aussie accent makes it sound like you're just saying "gleaah"

@Ipanophis 7 лет назад

Doctor Cthulhu lol. He's losing his Aussie accent. RIP

@sMASHsound 7 лет назад

Doctor Cthulhu no

@buddhamack1491 5 лет назад

@@Ipanophis Ugh, there is no worse mix of accent then part American part Australian. Well maybe more so hearing that as an Aussie is what makes it so bad as we're used to hearing both from TV and real life when accents switch it just sounds so bad.

@nolanwestrich2602 7 лет назад

Nothing about vantablack. Vantablack deserves a mention in an episode about telescopes, doesn't it?

@widg3tswidgets416 7 лет назад

Nolan Westrich What? For the most part vantablack is exactly what you don't want anywhere near a telescope for the same reasons you don't want fat & hungry lesbians around your favorite blowup doll: It will eat up the best part of the event and leave you with nothing.

@nolanwestrich2602 7 лет назад

Well, vantablack isn't very useful for a lens or mirror, obviously. But if you coat all of the inside of a telescope with vantablack, except the parts that are _supposed_ to do something with the light, then you'll reduce the amount of light just bouncing around the telescope, making it more sensitive to light.

@nmarbletoe8210 4 года назад

@@nolanwestrich2602 Yes, it's really useful for coating the tube etc. There are surfaces about 100 or 1000 times blacker now, at least in the lab.

@peterb9481 Год назад

Good episode. Could see a Lord Of The Rings joke coming - LOL 😂❤

@vertxxyz 7 лет назад

this always depresses me. Just shows what we could do if we put the resources into an interesting place.

@serdnae 7 лет назад

Wtf he turned American for a second at 1:38

@gjeta 7 лет назад

Hey why not use the moon as a shade???

@harrygibus 7 лет назад

I thought the same. I found another discussion in the comments of an article about the subject that posits using a large body like Jupiter as a shade. The responder suggests (even with an atmosphereless body like the moon) that a sphere shape has no edge and so the diffraction is not present. He suggests building a "fence" around the moon to give it an edge. I wonder if a series of arc shaped shades orbiting around the moon would create the same effect - like a lenticular shade lense? link to article/comments www.kurzweilai.net/giant-space-telescope-could-image-objects-at-far-higher-resolution-than-hubble

@mono2go 7 лет назад

(1) the moon is too big and is very very bright (yes, even the dark side). it will completely swamp your planet signal (2) Fresnel diffraction. this is exactly why starshades has to have petals

@PlaidHiker 7 лет назад

Maybe because it is not perfectly round. Along the edge are craters, valleys, and mountains, that make for a jagged edge when viewed close up.

@TheJaredtheJaredlong 7 лет назад

We don't have any control over the position of they moon and the damn thing keeps moving. These kind of observations require long exposures to work

@saurabhs1996 7 лет назад

moons gravity will affect the light and any sort of radiation which is passing close to the surface which creates more problem (general relativity) ....and also its kinda and round rather then flower shaped which doesnt really help in reducing the diffraction and most important.....we cant control the moons position .

@BrettMagill 7 лет назад

Dude, you seem tired, what's up, you've normally got such enthusiasm.

@Hugh.Manatee 7 лет назад

I still think we should start working on that Lunar Observatory; no atmospheric interference, yet all the advantages of solid ground and can be built from mostly moon materials. And there are plenty of people who would want to play what is basically real life minecraft on the moon!

@1MysteryZ1967 7 лет назад

Dear Ssssound perssssson. Pleassssse fix the ssssssibilance in thessssse videosssss. Check out the Recording Engineers Handbook, 3rd Edition, by Bobby Owsinski for tips and tricks that can be done in post production. Please help, we love these videos, but the sibilants are killing our ears, precious!

@MaybeHabitForming 7 лет назад

This guys head is way to big!!

@bobzombie2710 7 лет назад

Shirtango na, his body is small.

@baardnaap 6 лет назад

glad i'm not the only one noticing.

@AnanyaGupta 6 лет назад

I thoroughly love your Q&A which always gives me additional things to research and learn long after your video has wrapped up :-)

@Inertia888 7 лет назад

My middle school algebra teacher in 1992 told me that algorithms would be more important and necessary in the future than I thought. She was right about that, for sure. I wonder if she was a time traveler? Or maybe grown ups really did know what they were talking about, back then!

@KtosoX 7 лет назад

Anybody wants to buy an almost unused letter S?

@garethdean6382 7 лет назад

Is it high quality stuff? Sesame Street pure? Lotta letters flooding the market these days have been cut with numbers, even punctuation.

@KtosoX 7 лет назад

Gareth Dean Sorry m8, already found a buyer.

@FirstRisingSouI 7 лет назад

Whoever wrote the title need to learn grammar. EDIT: they fixed it.

@dexterrity 7 лет назад

I see what you do there.

@jedaaa 7 лет назад

Or...... AM WE ???????

@nachannachle2706 6 лет назад

+FirstRisingSong My take on your post is: "Whoever wrote the title need*S* to learn grammar."

@FirstRisingSouI 6 лет назад

When the video was first put up, the title read, "The Future of Space Telescope." They fixed it since then, so my joke doesn't make sense anymore.

@rath60 6 лет назад

8:45 proudest telescope ever

@mvmlego1212 7 лет назад

"The pile of shiny grit is already as broken as it can get"--challenge accepted.

@AndrewMellor-darkphoton 7 лет назад

rainbow space junk is a bad idea

@SpiritualFox 7 лет назад

You're probably right. It sounds like a joke. Apparently the shiny space rubble is supposed to stay in place and not drift away. Because lasers or something. And magic algorithms that run on rainbows. Pony not required ™ 😕

@MrLightZenith 7 лет назад

Yeah, you'd think they could figure out a use for the junk currently in orbit. The rainbow idea sounds a lot like the copper needle incident from the 1960s. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JCULoC6eXnM.html

@garethdean6382 7 лет назад

The physics behind it is actually rather well known now, things like light and sound can be used to suspend particles and even manipulate them. The big problems on Earth are air resistance and gravity which prevent an object being kept in a stable position without constant interference. In space this is much easier, the cloud will hole together because there won't be any forces trying to disrupt it. It needs some input to avoid slowly dispersing, but far less than already demonstrated systems on Earth. Should the cloud be disrupted that's not too much of a problem, the small size of the particles mean that they won't be too damaging at typical 'space junk' impact velocities. It's certainly worth discussion if not attempt.

@ferdinandkraft857 7 лет назад

Gareth Dean I don't think they would stay as a clump. Earth gravity gradient would stretch them along radial directions. Also moon gravity and solar wind add to the chaos. And even if all this was negligible, how do you release thousands of pieces in space and expect them to have virtually no relative speeds?

@SpiritualFox 7 лет назад

Fine. A rainbow space telescope is possible, but it would require the ability to project holograms into space.

@aleksandersuur9475 5 лет назад

Limitation of mirror sizes would be much less of a problem if we designed our space telescopes like legos and practiced some in orbit assembly. It would also make building telescopes like James Webb much cheaper and faster, no worries about sunshade getting tangled, an astronaut can just poke at it with a stick and fix it. And if a part doesn't work you can just send a replacement. You don't have to spend 95% of the time and money making sure everything works for certain the first time without any assistance.

@dciking 7 лет назад

Something similar was tried before we started using satellites in the '50s/'60s. SciSchow did a video on that attempt.

@metroretro8816 7 лет назад

Just imagine if the government started funding Nasa more instead of the military we could see some truly advanced space craft and telescopes

@boycotgugle3040 7 лет назад

Good idea! Also, I think in this sector there shouldn't be patents, but a world space agency has all the rights pooled. I always cringe when I think about that all research done by NASA must be repeated independently by Europe, by China and Russia. How much could be saved if all worked together...?

@wadatamana 5 лет назад

@@boycotgugle3040 While it's a good idea, many nations have their own interests and trust issues. It is extremely difficult to unify the world countries.

@AlaskaB83 2 года назад

3:50 was anybody else afraid the deploying star shade was going to hit him? Move duuuuddee!

@namewastaken360 5 лет назад

Watch out, that star shade almost hit your leg! You better not break it.

@MusiCaninesTheMusicalDogs 7 лет назад

Thank you so much for answering my question guys! You rule too much! 👌👍😀

@FairyRat 7 лет назад

- Frodo, you have to travel to a black hole and throw this ring into it. - Well, I guess eagles can fly... - NO, smartass.

@CanMan-pd9vh 7 лет назад

We have been waiting for telescopes like this for a long time!

@julians7268 7 лет назад

This needs to be a daily show! Make it happen. We all know you guys have more money than you know what to do with so * NO EXCUSES*! Have you guys considered doing collaborations? There are a lot of good science and space centered channels.

@isthisthekrustykrab8646 7 лет назад

You can sense him trying so hard not to say glare in an Aussie accent that he ends up saying it weird 1:38

@Zokeh 7 лет назад

I love this channel. I want more.

@milkhbox 7 лет назад

OK, freaking cool. haven't seen any irl footage of the sun shade prototypes.

@pixartist8190 7 лет назад

Super interesting video, thanks

@ericwright8592 7 лет назад

The noise correction of the orbiting rainbow method reminds me of STORM super resolution microscopy. Very cool. I always imagine a lot of the tricks we use in microscopy could be adapted for the super large scales of telescopes as well