A Ridiculously Huge Pair of Ancient Galaxies

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Astronomers have found a couple galaxies that were much larger than expected, and the Opportunity rover might be in for some harsh Martian weather!
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Sources:
www.nature.com/articles/natur...
public.nrao.edu/news/2017-alm... www.simonsfoundation.org/2017...
www.nasa.gov/feature/jpl/nasa...
mars.jpl.nasa.gov/mer/newsroo...
mars.jpl.nasa.gov/mer/newsroo...
www.nasa.gov/feature/goddard/...
www.smithsonianmag.com/scienc...
www.popsci.com/can-we-predict...
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31 июл 2024

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Комментарии : 453

@scishowspace 6 лет назад

The first 200 to sign up at brilliant.org/scishowspace/ will get 20% off their annual subscription.

@apple54345 6 лет назад

I'm all for supporting SciShow Space, but no... I won't be doing that.

@glifosfato 6 лет назад

Dark matter was debunked weeks ago... I was surprised to see SciShow Space talking about it as if it's still legitimate up to date science.

@ResortDog 6 лет назад

The editing cycle makes a few errors inevitable. I was going to say just redefine dark matter as energy AKA electrical potential and currents, but nobody has a unified theory figured out and proven or proof of dark matter.

@Stars11222 6 лет назад

I think y'all should get in contact with Tunnel Bear vpn service and see if they can also sponsor you that would be cool

@dudebro765 6 лет назад

The Blissful Zombie We've been to space and seen the Globe, you idiot.

@ghosthunter184 5 лет назад

The storm came. Opportunity didn't make it. 😭😭😭

@FewVidsJustComments 2 года назад

It had a missed Opportunity

@binky2819 6 лет назад

Huge ancient galaxies? I guess you could say they were formed a long time ago, far, far away.

@HappisakVideos 6 лет назад

Goood let the hate flow through you. ;)

@TheWrathsblade 6 лет назад

RustiSwordz Dewit

@willythemailboy2 6 лет назад

xkcd.com/1433/ Read the mouseover text.

@helenkholmogorova-landroot8717 6 лет назад

I don't get it

@helenkholmogorova-landroot8717 6 лет назад

well yeah... so what if its far away? it kinda is... and yeah it was a long time ago, near the big bang actually

@nrdkraft 3 года назад

I always love learning from Caitlin, her eyes are always so happy.☺️ She’s so chill yet enthusiastic at the same time😆😅

@realexivus950 5 лет назад

watching this in 2019... R.I.P Opportunity

@-yeme- 5 лет назад

watching this in May 2019... R.I.P. GrumpyCat

@Cnut_the_grape 5 лет назад

And now R.I.P ProJared

@realexivus950 5 лет назад

@@Cnut_the_grape uh.. hes not dead?

@Cnut_the_grape 5 лет назад

@@realexivus950 his career is

@chesthoIe 3 года назад

watching this in 2020. R.I.P everyone's grandparents.

@icebox1145 6 лет назад

wow they kinda called it on the storm RIP oppy

@kbchef9205 6 лет назад

You’re good!!! Please keep putting out these videos. I learn soooo much. Great stuff. Thank you

@losttribe3001 6 лет назад

I wonder if there are flat-Earthers in those galaxies also?

@jamesthegood123 6 лет назад

there are flatearhters all around the globe but not in space

@herranton 6 лет назад

The Earth is flat. From a certain point of view. If you were traveling at near the speed of light, distances would contract and the Earth would be flat. Just because you don't experience it in this way, doesn't mean it isn't real.

@GirtonOramsay 6 лет назад

I wonder how they explain elliptical galaxies (typical spherical in shape) or the Sun being a circle in the sky....

@Jan_Boris 6 лет назад

These idiotic creatures have an answer for everything, dont waste your time.

@ikegel1923 6 лет назад

it is flat dude look it up, i've watched 100's of youtube videos so i know what i'm talking about

@dudebro765 6 лет назад

You're great as a host, keep these videos coming!

@idahogreen2885 6 лет назад

your my fav sci show (and maybe all of youtube) host. love your face girl

@DontTrackMe 5 лет назад

I'm always so pleased when I see this presenter. She is so genuinely happy and excited about everything, and it's deeply infectious. My friend and I always cheer when it's this presenter or Hank. Nothing against the other presenters at all though. I just like those two the most.

@seanpeery7780 6 лет назад

This ending segment has me thinking about how you would design a relativistic traffic signal that could operate regardless of the speed of its observers.

@Jbm510 6 лет назад

I love SciShow Space 😀 Especially when Miss Bouncy Hands narates the videos 😀 Very energetic

@jimmyshrimbe9361 5 лет назад

Awesome!

@AshArAis 6 лет назад

Love hearing about the logistics of Mars' seasons, and how the rover has to deal with it.

@forcelightningcable9639 6 лет назад

Off topic, but, hey, like the host’s hairstyle in this vid. 👍

@willpunch4food 6 лет назад

You hair looks so good like that!

@ZZ-sb8os 6 лет назад

@marcoffs95 6 лет назад

pretty brilliant implementation of an advertisement. i enjoyed it to be honest!

@d4.2g 6 лет назад

You're the sweetest and brilliantest. 💓❤️💓👍🤓

@sugibudder 6 лет назад

I have to say, i did NOT expect the words "Ancient Galaxies" to follow the words "Huge Pair", my messed up head expected something else.

@DrQuin851 5 лет назад

Would love to see a video about Dark Matter vs. Quantized Inertia.

@K_i_t_t_y84 6 лет назад

Fascinating! 😄

@Darkstar..... 6 лет назад

That bounce bounce ad is drivin me nuts. When will it end please

@GraveUypo 6 лет назад

hmm. must be some really wild winds to get dust to kick. cody did an experiment on his vacuum chamber at martian pressure levels and a small fan couldn't move a small plume hanging from a thin thread mere centimeters from the blades AT ALL even though it was running almost twice as fast as it does in 1atm. maybe the angle of attack of the blades rendered them useless in low atmosphere rather than the wind not having enough mass to move the plume.

@matt_b... 6 лет назад

Wha? Side Show Space?!? I had to go back and re-listen to the first second of audio to make sure I heard that right!

@sebastianelytron8450 6 лет назад

Can you do a special video on the diamond planet?

@KonradofKrakow 6 лет назад

1:19 Why compare the mass of an entire galaxy with the mass of our Sun? Shouldn't it be obvious that a galaxy is bigger and heavier than a single star? It's like comparing a single person with the entire population of India or China - what's the point?

@planetfall5056 6 лет назад

Its a convenient metric, like the mass of the empire states building in school buses or something. We don't have a typical unit of mass large enough to describe galaxies, (a thousand billion scintillation tons is pretty meaningless). Solar masses is pretty understandable, everyone knows the sun is huge, and just a few billion solar masses is still somewhat mind-wrap-aroundble and it being in suns gives a sense of scale, something we can look at and compare it too.

@David_Last_Name 6 лет назад

Actually, a solar mass is considered a unit of measurement in Astronomy, just like the Earth-Sun distance is also a unit of measurement (the AU). So saying "260 billion solar masses" is like in some other field someone saying "That thing weighs 260 pounds".

@BytebroUK 4 года назад

As far as the dust storms are concerned, I'm thinking (assuming there is some power still going on, and the continuation of power is their focus) then what they need is the equivalant of wind(screen|shield) wipers on the solar panels? Would that be doable at all?!

@SCIENindustries 6 лет назад

what's the percentage of the light what rover gets more while be tilted compared to be horizontal?

@aguynamedlynx6397 6 лет назад

The “Opportunity” rover finding opportunity on angled ground to last longer than its 90 day predicted life span, one of said angled ground is fine indeed on Endurance Crater. Wow

@redomer91 6 лет назад

I didn't even think about a "huge pair" until red the comments.

@DavoidJohnson 6 лет назад

I wonder what those two galaxies ended up like after merging and whether or not they have slipped off the edge of the observable universe.

@ciudadanubis 3 года назад

Next missions must carry a small air compressor to have a reserve of compressed air in a bottle that can blow the dust from the solar panels. Even for cleaning the cameras lenses.

@poorplayer9249 6 лет назад

How apropos that you're sitting on one of the "Couches of Knowledge" to go through that Brilliant exercise.

@carriemaxwell4695 6 лет назад

Trippy

@MindlessLittlePony 6 лет назад

You nailed this episode, Caitlin! Good job :D

@HaesslichG 4 года назад

Famous last words for Opportunity here.

@vaerenbergh 6 лет назад

what happens when you travel faster then the speed of light? when you look backwards wil you still be able to see the light from the star you left behind? and if you look upfront will you see the lightparticels pas by or see the stars you are traveling towards? Greetz Sean

@davethepak 6 лет назад

Love the program - one point about the two galaxies - if they "almost" break the math and don't fit the models, and they could not be directly observed (with a lot of interpolation and estimation with the lensing) sounds like a few more scientists need to try and duplicate and validate the findings. yes, new things happen and models and theories are refined (that is the heart of science) - but sometimes the data could be a mistake...

@sirBrouwer 6 лет назад

So on the next rover mission to mars, a fan or air below should be Attached to the Rover. So when there is dust on top of the panels it can blow it of again.

@WireMosasaur 6 лет назад

They've got HUGE... tracts of stars..

@grantbartley483 3 года назад

Really Far Away and Incredibly Dim: the sequel to Up Close and Incredibly Loud

@Infinit3Enigma 6 лет назад

Did they use any cfd techniques? I just love cfd

@jonahroukema6754 6 лет назад

I was just watching the latest vsauce 3 vid and it closed with the same picture as this video begins with

@189Blake 6 лет назад

14 years?! That much time already passed?!

@EMBer3000 6 лет назад

Question: Does dark matter fall into black holes in the same way that regular matter does? Would this mean that black holes are made mostly of dark matter?

@zarion1181 6 лет назад

Dark matter doesn't exist. It is just something they made up to make our equations work with the universe as we observe it. Same goes for dark energy. They made that up to explain the acceleration of our expanding universe. We just don't understand gravity very well and we don't understand black holes. It is something were the laws of quantum physics do not apply anymore.

@Muse1point0 6 лет назад

Great question!!

@dentoncrimescene 6 лет назад

Good question.

@Sunnywastakentoo 6 лет назад

Does dark matter only not react visible light or does it not react with all wavelengths.

@bl4243 6 лет назад

>>>H U G E P A I R LOL

@november8039 6 лет назад

_HA!_

@infidel1993 6 лет назад

All of these recent discoveries by astronomers that seemingly don’t make sense, makes me wonder if there might be something fundamentally wrong with our understanding of physics.

@TrillShatner 5 лет назад

omg my eyes

@mynamejeff4883 6 лет назад

The part about you riding toward the trains is a flawed question, though i may have just missed part of the question. How far are you away from the station. You might pass the station and then not see any of the trains on that route after that. Unless the station is part of a loop and you just keep following the loop in reverse.

@mynamejeff4883 6 лет назад

Also it doesnt really state that the pattern has been running for a while and doesnt stop but i assume that is the case because if not all answers would be totally dependant on your distance from the station as it would take time for the first train to even reach you if the pattern had not already been running when you started counting and would also cause there to be a limit on the number of trains because at 10 minute intervals there could not be more than 6 trains on the track in an hours time no matter how fast you traveled yourself. I think i am just way overthinking this and anlso probably missing something

@SuperGoodison 6 лет назад

How little we really know just a lot off hot air

@johntmasseyjr 6 лет назад

That huge galaxy is shaped like a head. In fact, it looks very similar to the face on the Shroud of Turin.

@momobobo4566 6 лет назад

I wonder if we can use dark matter for space travel like making worm holes

@thetntsheep4075 6 лет назад

Just a few.... Billion ...stars

@phaedrus000 6 лет назад

I have a question, SciShow. Why are some asteroids cigar-shaped? I know 'Oumuamua isn't the only asteroid shaped like that, but when I tried to Google the answer to my question, all I got was hits about 'Oumuamua. I'm just curious how they end up with that shape.

@Trainfan1055Janathan 6 лет назад

What the heck is ten thousand trillion? 10,000 X 1,000,000,000,000?

@GirtonOramsay 6 лет назад

Yeah or 10^16 in scientific notation

@dizzious 6 лет назад

Well, a thousand trillion is a quadrillion, so ten of those would be ten quadrillion.

@WSmith1984 6 лет назад

1x10^22, That is if you go by the acutal definition of a Trillion rather than the american's strange definition.

@Trainfan1055Janathan 6 лет назад

JohnSmith MGTOW I actually think the European one is more confusing.

@WSmith1984 6 лет назад

The European system is more consistent: Ten thousand: 10,000 (1x10^4) Million: 1,000,000 (1x10^6) Billion: 1,000,000,000,000 (1x10^12) Literally a million million. Trillion: 1,000,000,000,000,000,000 (1x10^18) A million million million. So Ten Thousand trillion would be 10,000,000,000,000,000,000,000 (1x10^22)

@erictaylor5462 6 лет назад

How fast will I need to drive before I can tell the cop the light looked green to me without lying to the cop?

@beerasaurus 6 лет назад

The bang was bigger than we thought

@krabkit 6 лет назад

4:33 i don't really see why there was a need to specify that mars was going ot be close to both the sun AND the barycenter of the solar system. i realize that they are not exactly the same and that it is typically outside of the surface of the sun but if i remember correctly it won't get more than 1 million km away from it. less than 1% difference in distance

@Aleph_Null_Audio 6 лет назад

How are they calculating the amount of dark matter if they can't see it? Is it based on the rotation spread of the visible mass?

@futarbd7310 6 лет назад

Bigger and better telescopes will most likely bring alternatives to the big bang theory

@knightshousegames 6 лет назад

So if Opportunity's design is so robust and has lasted so long, why isn't the next rover we send to Mars patterned off of Opportunity instead of Curiosity, which has a finite fuel supply and therefore lifetime?

@shaunmclaughlin5167 6 лет назад

Spirit and Opportunity are much smaller rovers with significantly smaller scientific payloads and power requirements. Curiosity's RTG allows for continued operation in a much wider variety of weather over a a more consistent period of time.

@jamespurks1694 6 лет назад

I have a problem with dark matter. It is to convenient explanation for "missing" matter. Reminds me of the ether theory around a century ago.

@hyper9374 6 лет назад

Propose something better to the cientific community, then.

@TheZenytram 6 лет назад

what about, nutella metter.

@stasyszy 6 лет назад

ether turned into quantum mechanics, dark matter turn into ??? we need to wait for it

@CChissel 6 лет назад

JAMES PURKS We know it’s there, or rather around. Some think it’s dense field particles that pop in and out of existence continually, which creates this dark energy. Like neutrinos but way more elusive. All we really know are the effects of it. Unlike the aether theory, we saw the gravitational effects of dark matter, it repels and not attracts. So they had to give it a name. The aether theory was really about light waves moving through a vacuum. Completely different. Also, some say it’s our universe either overlapping or getting too close to another universe in the multiverse. Some also say it’s another dimension causing this energy. No one knows.

@jamespurks1694 6 лет назад

CChissel Thank you much for your response. I can see that there are several possible ways they can originate from. If they are more elusive than neutrinos, it is very likely that they will not be detected any time soon. Your discussion about oether triggered a memory from many many years ago. I recall it having to do with light and that theory was proved incorrect. I think I may be a bit too deep in the general theory of relativity. Thank you much for getting me back on the right path.

@santhoshsrinivasagan6678 6 лет назад

hey, can you make a video on how astronomers calculate the mass of a galaxy.

@josephritch6718 4 года назад

They measure different spectrums of light which allows them to see how heavy the elements are depending on colour. Iron-dense stars and clusters.

@josephritch6718 4 года назад

Iron poor stars are not as heavy. The strength of black holes and proportion of different stars give us a sense of perspective.

@johnking1200 6 лет назад

I bet theres a type3 in there

@daxxonjabiru428 6 лет назад

Very often one galaxy will be smaller than the other.

@huda2170 6 лет назад

Why didnt they just put some wipers on the solar panels?

@andreaaristokrates9516 6 лет назад

Lolcolin 1. More mass 2. It needs power to operate 3. They need to be moved out quite a bit (powerloss) 4. They would get dusty too and fine swiping mechanics want to be protected 5. Maybe the area was to diffucult of a shape and or large 6. Folding it up could be less efficient. I think we can assume they would have built them in, if they could, even it was only intended to be a 90 day mission.

@not_adrs 6 лет назад

Andreas Aristokrates 7. Joke

@on1yadam 6 лет назад

Lolcolin nasa is cheap

@pyroslavx7922 6 лет назад

Wipers only work well with water/liquid, that's why you have water/detergent spraying pump in your car for windshield, and i guess it would scratch surface of solar panels, as dust particles there on Mars have rough/sharp edges. You could shake it off by sound frequency vibrations...but that would make thing more complex, heavier and more stuff to break, and solar panels should be able to tilt (ok, close to) vertically before shaking/vibrating dust off. Or perhaps blow dust off using compressed air, i mean compressed Martian atmosphere, but again adding weight and complexity. I guess energy usage is no concern here, as thing would use just short bursts of power here and there.

@David_Last_Name 6 лет назад

+Lolcolin They actually did consider wipers for the solar panels during development, but in the end they where dropped due to their weight. A few other interesting ideas they considered at one point: Compressed air to blow the dust off, and a sheet of clear plastic covering the panels on rollers that they would just roll away when it got too dusty. They where all scrapped for various reasons, but the most important one was that they only needed to get to 90 days to be considered a success, and all these ideas just added complexity and work to an already overly complex rover that was being assembled by an already overworked team. Oh, and since there where 2 rovers they had to do everything twice, so they decided to just make the panels as big as they could and hope it would last 90 days. I think if we all told the team that they where building rovers which would last decades they would have yelled at us to stop wasting their time and go get them some coffee. lol.

@SakiSkai 6 лет назад

Why not put hydraulics on the solar panels to adjust the tilt however they want from earth? Is it that hard to think about it and engineer it?

@ZZ-sb8os 6 лет назад

lol, do you really think you're the first person to have that idea?

@3rdmonocle789 6 лет назад

Initially I thought the title said 'A Ridiculously Huge Pair of Glasses".

@jamespurks1694 6 лет назад

I am starting to have serious doubts about dark matter after I saw some articles where it was observed that data had to be fudged to make the observations fit the theory being tested.

@josephfarhat9505 5 лет назад

I know Mars has little atmosphere . But mabe the rovers could come equipped with a little air compresses to "blow off dirt? "

@thebananarepublic7255 4 года назад

The first 2 cities on Mars should be named opportunity and spirit then Flavor Town the Muskvile

@garetclaborn 6 лет назад

ya'll know this has been a trend right? at some point we need to review the total amount of things we're correcting for. it's a cumulative value that decreases standard error and we've probably long passed it.

@redomer91 6 лет назад

Yes, a trend. A trend for our entire known history.

@patricijabozanovic152 6 лет назад

Recent discovery explained that there is no dark matter. Saying this as a fan, please keep your information straight.

@dbrew2u 6 лет назад

Wait till the James Webb Telescope comes online . We haven't seen anything yet .

@mabus4910 6 лет назад

Dave Brewer right? Unfortunatly it's more tha a year till it's launch

@NewMessage 6 лет назад

Looking back in time isn't that hard. Just go to your local pub, and find the old fat guy with 6 empties on the table, wearing a high school football jacket.. he can see into the past like you wouldn't believe.

@bravo________87372 6 лет назад

Tell us about the aliens that have been cleaning off the dust on the solar panels

@ZanxxYami 6 лет назад

Why is in our galaxy more dark matter then in the "center-galaxies". Has is really to do with the beginning of the universe or could it be galaxy related? Compounds/size etc.

@TheFourthWinchester 6 лет назад

Now I feel so small and everything and everyone are unimportant that I just wanna curl up and sleep forever on my bed 😐😐😐

@tandarines8624 6 лет назад

TheFourthWinchester LOSER. Grow a *pair*

@rkpetry 6 лет назад

*_...so-the observed pair of galaxies was a late-merger of the 9th, following the prior 8×, of such smaller-but-not-dwarf galaxies; sounds like the cosmos was much-busier early-on..._*

@balistic565 5 лет назад

Rip opportunity

@angelcollina 6 лет назад

I just want to say that I think your hair is super cute worn that way and excellent video, as always.

@TheOmegaDMM 6 лет назад

Yeah assuming the foundation of their theorems are actually based in fact and not just them plugging numbers to sound good.

@sabahqureshi4426 5 лет назад

RIP Oppy :(

@somedudethatlikestheinternet 6 лет назад

That means the universe is older than we think

@LeeAndersonMusic 6 лет назад

I love me a good pair of "ancient galaxies"

@juniperburton7693 6 лет назад

What if Dark Matter is matter from other universes occupying the space of our own? Ig that means we could have upto 25 other universes at work here...

@zexygamingwinter333 6 лет назад

Those planets were made a long time ago in a galaxy far far away

@davidmaximo4385 6 лет назад

I find it odd to say to SciShow Space that dark matter is disproven and missing mass has been accounted for in last year

@frankr7239 Год назад

Whats there names of these galaxcies

@HeavyLikesSandwich 6 лет назад

I don't understand why people compare the mass of something like a galaxy to that of our Sun.

@urf1985 6 лет назад

You look gorgeous! Hair is on point girl!

@sebastianelytron8450 6 лет назад

You sound thirsty. Have a cup of water.

@TheKamiigirl 6 лет назад

Stop.

@MustangNinjas 6 лет назад

Sebastian Elytron I see your point but what's so bad about this person complimenting her? He/she is not even being thirsty, just being nice.

@eastofeden9487 6 лет назад

She looks like she just came from a Phish concert and like she smells bad

@Mega10026 6 лет назад

Pervert life 😂

@notrandom2 6 лет назад

what a smarty

@cernunnos_lives 5 лет назад

Yes. 2 more galaxies for colonization. I think we need to spread our life everywhere. Wherever there is no life, plant it. We owe it to our ancestors, we owe it to our home. It has to survive beyond Earth.

@charlesbronson9289 6 лет назад

So, I’m a big dummy, but if there’s a point in space in which we can never see or reach due to the expansion rate in space how do we have any clue how old our universe really is? What if just beyond that point in space there’s an older section of the universe? Would it technically be a different universe since we’ll never be able to get there without some sort of wormhole or space time bending technology?

@pseudonymousbeing987 6 лет назад

Charles Bronson _carbon dating_

@pseudonymousbeing987 6 лет назад

Skelotor Two Is that really the main problem you found in proposing carbon dating to measure the age of the *universe?*

@Lou20X6 6 лет назад

It's because when we talk about the age and size of the universe, we aren't talking about the Universe, but the observable universe. The word "observable" is often omitted, but generally you can infer that this is what scientists are talking about if they don't say "Universe" (with a capital u). Scientists make no claim on how large or old the Universe is, because it is literally impossible to know, and given our current understanding of physics, is impossible for us to ever know. The most popular hypothesis is that the Universe is infinitely large and old and transends further dimensions, but this is impossible to test. Effectively, the observable universe is all of the universe we will most likely ever get to understand and intereact with, so it is our universe.

@charlesbronson9289 6 лет назад

Lev Copelan I get that, but it’s like the whole if a tree falls in the woods thing. I’ve never heard a scientist say “Our observable universe is 14 billion years old”. Also this poses a huge problem with my small brain in rectifying the Big Bang. If the Big Bang Happened 14 billion years ago and created the observable universe what created the unobservable universe? Wouldn’t the unobservable universe have technically been the observable universe since it was here 14 billion years ago even if no one was here to observe it?

@andreaaristokrates9516 6 лет назад

As I recall the Big Bang happened everywhere, because there was no elsewhere and from there everything has spread. I think even Scishow Space made a video about this.

@MartynHutchby 6 лет назад

What’s the difference between the sun and the solar systems centre of gravity?

@downinthevalley9757 3 года назад

ah the segment about oppy hits different these days....

@aram7718 6 лет назад

Our materia can’t interact with dark matter and vice versa. What if dark matter has its own set of several particles just like our own materia does? Isn’t it possible to be stars and planets made out of dark materia that see our ordinary materia as invisible and non-interactable just the way we see dark materia? Think about it. It might even be life made out of this dark materia. Even better, there might be life made out of dark materia in the spot you’re sitting in now and thinking the same thing about our materia (although the chances are so slim you’d have better chances throwing a ball at the wall and it completely passing through it). Just my thoughts and speculations as a kid who only has studied high-school physics. Have I gotten this all wrong? What are you thoughts?