What We Know, And Still Don’t Know, About the Dark Side of the Moon | Compilation

[@StitchTheFox]

Thank you for labeling this as a compilation!

[@skyb2149]

You a commie?

[@azaz6823]

Agreed. Too bad my phone cut off the end of this video title 🤣

[@mybeautifulcat7011]

Lmao. Nigha

[@fluffly3606]

You could quite easily argue that Earth is "two-faced" as well, given that one side is covered almost entirely by a kilometers-deep basin filled with saltwater (I.e. the Pacific Ocean) while the other has comparatively way more highlands in the form of the continents.

[@JohnnyWednesday]

Can we use the ages of craters on either side of the Moon to determine when the Moon became tidally locked with Earth? can we deduce any previous orbital resonance from the pattern of craters?

[@dantopash8267]

I really really wish people would stop calling it the “Dark Side” of the moon… it clearly gets light, we just don’t see it. It should always be called the FAR side of the moon.

[@Peter_1986]

There are lots of things in the universe that are called "dark" in a metaphorical sense - like "dark energy", for example - and nobody ever has any problems with those names.

[@dylanprivate7776]

​@@Peter_1986 for real

[@Ryan-wk3mc]

Thanks!

[@marilynlucero9363]

I'd like to show a lot of respect for telling us this is a Compilation of older videos! Going to watch it a 2nd time through!

[@player1_fanatic]

Agreed.

[@RickySTT]

I usually skip compilation videos, but I sometimes watch them. The important thing to me is that they tell me that it is a compilation, so I get to make that informed decision and don't waste my time.

[@filonin2]

@@RickySTT The titles are SUCH a time saver.

[@thstroyur]

@@filonin2 They don't always put "Compilation" in the titles, tho

[@fabiovieira3045]

There is another thing that we know, The Dark Side of the Moon is one of the best albums ever made, if not the best

[@matsbacklund6471]

I bet it's the off button for the gravity buried there. Liked this compilation

[@johndoh5182]

I think I might have a couple of missing socks up there. I've looked all over the world and can't find a sock from two different pairs.

[@Ehterlink]

Just a few days ago i started telescoping the moon and after watching this video i am glad he is showing us his prettier side :-) The far side seems to be a bit boring.

[@daltongrowley5280]

it was until Gary Larson came along.

[@RickySTT]

OK, _this_ time you get a thumbs up for explaining that the “dark” side isn’t literally dark.

[@jeffs6090]

I get that they are trying to use the term to be analogous to dark matter - dark as in mysterious. However, constantly saying it throughout the video just sounded cringy and horrible. There's a reason why it's actually "the far side of the moon". He says so in the very sentence but still insists on saying dark side. It just makes it sound so very ignorant.

[@MrT------5743]

@@jeffs6090 Dark side is reference to 'unknown' and 'communicate blackout' and doesn't mean anything to do with amount of sunlight. Have you ever heard when a submarine 'goes dark'? Or a spy or special agent 'going dark'? They don't just suddenly turn off the lights, they stop communicating and begin silent operations. You can also see this being used in more recent scientific terms as dark matter and dark energy. They are unknown. Long ago terms like dark ages or even the 'dark side of the force' in star wars. The latter dark meaning secretive and evil. So these definitions have been around for a long time. Just because you don't like the term dark side don't make it wrong.

[@markfisher7962]

@@jeffs6090 Amen!

[@rvw2bdragon139]

The 'dark side of the moon' is term in reference to radio communications. It is as relevant today as it was when coined. We cannot communicate with any object that has proceeded beyond the lunar horizon. This is the loss of line of sight to the object from earth. Practical example: draw two circles on a piece of paper, pick any point on the circumference of one circle, use a ruler from that point and try to get to a point on the opposite side of the other circle without transiting the ruler through either circle. The ruler is equal to radiowaves, the point is your transmitter. So when an object goes to the opposite(far) side of the moon, it goes dark to radio communications from earth. The only way to change this is to add a third point around the objects to change angles. Satellites can help in this aspect but we dont have a lot of them with antenna pointed at the moon.

[@markfisher7962]

@@rvw2bdragon139 Thank you for useful new information! This relates to proposals to establish a radio telescope on the far side, isolated from the Earth's chimpanzee chattering. Unfortunately, for the population of non-radio engineers, mindlessly repeating "dark side" only drives home the common image of the moon's geography, like "darkest Africa."

[@julicaru4812]

Compilation or not , love this channel! All the best Jules

[@SecondFinale]

Reid sounds like an exact mix of Penn Jillette and Neil deGrasse Tyson. That's great.

[@OneBentMonkey]

It would be helpful if the original air date of the “chapters” of a compilation appeared on screen at their start.

[@nedgrant918]

Calling the far side of the moon “the dark side”… what else can we expect from people who see a chimpanzee and call it a “monkey”? Thanks for spreading the word!

[@larryfoster8820]

It’s more of the fact we don’t even know what monkeys call themselves.

[@UnoDoseMedia]

Great job everyone who worked on this video. Alot better than most KZbin videos available today 2023

[@Mncdk]

Thank you for marking this as a compilation. Giving the video a thumbs up, despite not watching it.

[@Swede_4_DragonBeliever]

Greetings from Sweden! Great topic!

[@robertjulesyoung9994]

oh boy, I know you from your Psychology videos! good to have you here!

[@talhacavusoglu4573]

I wonder what did Arthur C. Clark thought of the metal thing inside South Aitken Crater.

[@daltongrowley5280]

My question is why not put a space observatory on the "dark side" of the moon, not because its dark but because its in a stable orbit, a satellite in lunar orbit could bounce signals back to earth effectively and it would be more serviceable (albeit still not easily) compared to the James Webb.

[@SimonClarkstone]

There have been plenty of plans for things like that. One was to build a radio telescope in the quiet zone by laying out millions of wires on the surface. amusingly they pointed out that the wires could be made of pure calcium, because it's easy to find and process, and won't corrode in a vacuum.

[@rudylikestowatch]

I guess it is because half the sky is out of view 2 weeks out of 4. Unless they build 2 telescopes. One on each side. Or at both poles.

[@colleenforrest7936]

@@SimonClarkstone That's what China did when they landed their rover on the back side of the moon. They orbited 2 satellites around the Earth-Moon L2 point in order to communicate with the rover.

[@MrT------5743]

Because the 'Dark side" isn't always dark. It gets just as much sunlight as the near side. So if a observatory on the moon would be a good ides. the near side would be way better than the far side.

[@rais1953]

The far side would be a good location for a radio telescope, having no interference from radio sources on the Earth. A James Webb type infra-red telescope wouldn't work because it would get two weeks of hot sunshine every month. A visible light telescope should work even in the daytime as long as it wasn't pointed at the Sun.

[@davidhess6593]

One thing we know about the moon for sure: It doesn't *have* a dark side!

[@Peter_1986]

"Dark" is a metaphorical term for lots of things in the universe.

[@davidhess6593]

@@Peter_1986 In the case of the moon it's a misnomer used by ignoramuses.

[@Peter_1986]

@@davidhess6593 There literally exists a term like "dark energy", and that is very clearly a metaphorical term, since energy cannot be dark in the physical sense.

[@davidhess6593]

Dark modifying energy means that we don't know what it is, but we know what *both* sides of the moon are like, so dark is an especially inappropriate adjective to use when describing Luna!

[@zorrodahousecat9104]

The far side crust is thicker because it catches a lot more meteorites, a couple of billion years of that adds up, literaly. And it probably cooled down faster because it does not get the extra heat reflected of the earth.

[@Cajek2]

When did the moon become tidally locked with earth?

[@zorrodahousecat9104]

@@Cajek2 After a year of dating...

[@1314pankaj]

The good old asteroid always comes to the rescue for scientists.

[@stevejohnson3357]

Whenever you talk about the far side I keep thinking about images of cows or heavy set scientists in lab coats. Can't help it.

[@susanjane4784]

My Dad had a globe of the moon that I remember from the 60s that had a smooth, blank dark side! The nearside had texture and everything. A real artifact of lower technology.

[@Wolfiyeethegranddukecerberus17]

The Broodals mech makes it a bit difficult, but you get a multi-moon if you beat it lol

[@sophierobinson2738]

The far side of the moon being denser than the near side could be due to the centrifuge effect.

[@MrStreaty122]

So we should be focusing out astromining efforts on the moon, cuz a hunk of pure metals three times the size of Hawaii would be incredible

[@garyperkovac1002]

Our closest neighbor was a mystery ball some 60+ years ago. What we know now is breathtaking. What we will know will dwarf our understanding today. But that will be an excuse for another edition of "SciShow Space" ....

[@MuzixMaker]

10:45 Monolith. Deliberately buried.

[@joyl7842]

6:40 *Soviets. The Soviet Union didn't consist of only Russians. In fact, it didn't even launch its spacecraft from Russia and still doesn't.

[@CyberiusT]

"Still" doesn't?

[@timmcdaniel6193]

@@CyberiusT A true objection. With more detail: Russia's historic primary launch site at Baikonur is far inside Kazakhstan, but rented by and administered by Russia as an exclave. Plesetsk Cosmodrome is in northern Russia. Vostochny Cosmodrome is still under construction in the Russian Far East. In 2021, Baikonur had 14 launches, Plesetsk 4, Vostochny 5. Through mid-August 2022, Plesetsk 7, Baikonur 4.

[@PhoenixBiasAmberBiasMusic]

It seems the impact to the moon hit at just the right angle to slow or stop its rotation until the the earth's gravity competed the process of its loss of the moon . It begs the question what if the the moon still rotated? How would the denser side of the moon affect our tides and weather?

[@PhoenixBiasAmberBiasMusic]

Thank you. I didn't articulate my post very well, but you understood. I am still curious what a rotating moon would mean to earth's environment.

[@johndoh5182]

For it to have become a ball shape, it had to have rotated at some point. And what if the moon still rotated. Well, it probably wouldn't have a heavier side because it would have been rotating faster those few billion years ago so I would think that the dispersion would have been different.

[@filonin2]

@@johndoh5182 Planetary bodies are not rounded because they spin but by gravity.

[@rodanderson8490]

What purpose is served by playing "what if" games? Most people have enough problems understanding reality. Our education system does not encourage critical thinking skills.

[@Slattery777]

I could listen to these beautiful people talk all day. You know what? I think I will.

[@klezbot44]

love the compilations 🙏 love getting a little bit of a deeper look into interesting things I don't know about 😭

[@semipenguin]

The Far Side. Greatest. Comic. Strip. Ever.

[@lenzzzzzzz]

Can y’all explain the Helium-3 hype?

[@pierreabbat6157]

Could we set up a mine in Aitken?

[@Lazmanarus]

the moon doesn't have a dark side, but it does have a far side. all sides of the moon see the sun at various times, its rotation matches its orbital period, which is why one side faces the earth.

[@Peter_1986]

"Dark" is a very common metaphorical term for various things in the universe.

[@waynesilva3129]

If I was heading to the moon with the astronauts. I have no desire to be one of the he guys landing on the moon. So you collect some rocks. Bounce around for an hour. No, I’d rather have been sitting where Michael Collins was sitting, Alone. The most isolated man in the galaxy. What a feeling:

[@BlazinRiver1]

The far side seems to have taken the brunt of our star's ocasional temper tantrums when it is in position during a solar event.

[@michaeloppenheimer2582]

All this told some scientists that electronic imaging or digital photography was possible and of course it took several decades of development and research before they eliminated the need for film and were able to produce images digitally !!!

[@ttfamikel791]

Awesomeness

[@firstcynic92]

0:57. Luna 3 was the SECOND spacecraft to go to the moon. Luna 1 was supposed to impact on the moon but missed the moon by 5900km. Luna 2 was the first to impact on the moon as planned.

[@nicoletorcolini5316]

Hahaha, Pink Floid-you read my mind.

[@blackmage-89]

Imagine if the metal object on the far side is a mass relay O_O

[@Platanov]

Thank you for labeling this as a compilation! I love SciShow's content, and the work you guys do, but getting clickbated into a compilation video is really obnoxious.

[@Royaleah]

Could the lava on the moon been pulled to the one side by Earth's gravity? Lava tides?

[@filonin2]

no

[@MrT------5743]

The lava flows are probably the reason that side of the moon became tidally locked rather than tidally locked face caused the lava flows.

[@zomfgeclipse]

Sci show let's goo

[@marjohnsmusings3222]

Hey Hank, This was very informative but it could use a good edit for redundancy. You also might want to leave the extraordinary images of the moon up a bit longer during explanations.

[@olaf2170]

here comes a race for the largest palladium mine in the solar system

[@johndoh5182]

Yup. And the Chinese want it first.

[@amandacraft5034]

Can we get a video on the difference between a cathode ray tube and an X-ray tube? I know an X-ray tube has the anode. But now I need answers 😅😅😅 how are these two machines different.

[@rvw2bdragon139]

In principle they are not, just construction and frequency. Both have an anode plate, then focusing plates, modulation plates and the cathode. Think of an xray as an open CRT. EX dentist office: dental xray where they put the pickup or film is the equivalent of the front of the CRT making one dot or pixel. So a Xray machine is simpler than a CRT but uses much more dangerous frequencies to get its results, not that a CRT isn't putting out dangerous emissions. Old tube televisions used CRTs and had the saying 'always sit at least six feet from the screen'.

[@benhartwig8753]

Why is it that the narrator, the bearded, bald white guy, sounds JUST like Neil DeGrasse Tyson?! Uncanny!

[@mnealbarrett]

That's where Admiral Adama buried the Galactica fleet instead of sending it into the Sun like the TV series said.

[@robjeanbras1130]

I know it syncs up reasonably well with the Wizard of Oz movie.

[@TheFlyingDogFish]

We all know that's a predator ship buried under the Aitken crater :D

[@mikecummings6593]

Far Side of the Moon Not Dark Side of the Moon it's not always dark sometimes it's completely lit up call it what it is The Far Side of the Moon

[@jeffthompson9622]

The repeated references to the "dark side" in the first segment was very distracting and annoying.

[@christosvoskresye]

It wasn't "the former Soviet Union's" spacecraft; it was the Soviet Union's spacecraft. That's like describing Jesse Owens winning the gold in the 100-meter dash in Berlin by saying, "The dead racer dominated the event." He is dead NOW, he was not dead THEN; and so it was with the Soviet Union. Somehow this has become a phrase that is inserted mindlessly, like when, say, Latvia is described as a "former Soviet republic." No, it is still a republic, but it was formerLY Soviet.

[@explorerofmind]

Maybe the moon’s crust is thinner on our side because we aren’t the first earthlings to mine it.

[@yeboha]

my theory is that the crater was formed by a huge spaceship crashing into the moon , and its still buried there now !

[@cordongrouch9323]

The _far_ side of the Moon. The dark side is on the side opposite the Sun. I know that metaphorically "dark" can mean "invisible" or "unknown" and simply refers to that side of that Moon which always faces away from Earth. Thank you for your comments.

[@SirBobbyDuncan]

Am I supposed to learn more when you present the exact same story twice in a row but with two different people?

[@shelbyseitzinger927]

I always thought the man on the moon was the slightly humanoid blotch on the top left. Never seen a smilely face lol

[@manuelmeyer1026]

I propose a drinking game: every time tidal locking is described or named, everybody has to pour down a glas.

[@jamesyeung3286]

I'll see you on the dark side of the moon

[@Jagzeplin]

came to comments for this. you win sir

[@Crankwank]

Damnit... Now its stuck in my head. Thanks.

[@redneckshaman3099]

Once you go black, it's like smoking crack ❤️

[@onlyonewhyphy]

5:14 - Prepare to have your ears destroyed!

[@jstwatchnread8420]

It's surprising that we invented luna3 at the past but not megapixel camera yet...

[@offgridnzdotcom1027]

the near side is probably where the heavier elements are from earths gravity, wouldn't it be like a big centrifugal separator

[@michaelmicek]

Tidal forces pull both in and out.

[@SuLokify]

I wonder whether the dark "seas" of the moon were formed before, during, or after the moon became tidally locked. I understand they are lava floods, created *after* the moon's other landscape. The moon was likely formed as a collision of a large body with the Earth, and would have been totally molten for a short period, facilitating a very fast hydrostatic equilibrium and responsiveness to tidal forces. This makes me think the order of events was - collision, tidal locking, cooling of surface, lava flood on locked side, final cooling period Perhaps the rest of the video will answer, if not I'ma Google a bit when I'm done watching

[@randallkelley3599]

There is certainly an Autobot station on the far side! Yes, I think so!

[@lawrencedoliveiro9104]

It’s hard to see because it only faces us during our day-time. Well, you did say _dark_ side, not _far_ side, did you not?

[@reina4969]

Are we sure that the moon once rotated and became tidally locked? Could it have coalesced in such a way that it never rotated?

[@laurendoe168]

That the moon never rotated (or rotated for only a few million years after its creation) is the more likely possibility. As the moon cooled, the molten iron in it was pulled toward the Earth making one half heavier - this is the half we see today.

[@reina4969]

@@laurendoe168 I get the impression that this phenomenon is is described as always rotating and than stops rotating, but when I was thinking about Thea and the debris just ejected and orbiting earth, I didn't see why there had to be a spin imparted on the final formed moon. Is this sensible?

[@laurendoe168]

@@reina4969 Rotation in the beginning makes sense due to impacts occurring at various angles. To believe they all "cancelled" out, while possible, seems unlikely. This is why I granted that maybe for the first few million years it may have. Once it started cooling, the iron which had been pulled closer to Earth would cause tidal lock.

[@reina4969]

@@laurendoe168 Is it true that a molten moon of lava (or ball of lose particulates + core of lova) because of its malleability would generate more fiction from tidal rotation slowing it? Or is it when it is solidified with an offset iron center of mass core that slows it? Which slows it more, generally you think?

[@laurendoe168]

@@reina4969 I really couldn't tell you which would slow it faster.

[@AwestynJaxxxson]

Bro I recommend just goin there

[@dylanr19]

This was great, thank you so much! It's seem so obvious now but I hadn't realised the "dark side" of the moon ever faced the sun (probably because of the name!). I'll keep calling it the dark side since so much of its history is unknown to us 😅

[@pandoraeeris7860]

The moon doesn't have a 'dark side' - it has a near and far side.

[@salt-emoji]

I still think we should build a giant telescope on the back of the moon

[@MrT------5743]

The near side would be much easier and just as useful.

[@AdvancedLiving]

THERE ARE HIT albums, and then there’s Dark Side of the Moon. Pink Floyd‘s eternally popular song cycle has sold more than 15 million copies in the U.S. since its release on March 1st, 1973, and more than 45 million units worldwide. A true colossus of classic rock, the album made its creators - bassist/vocalist Roger Waters, guitarist/vocalist David Gilmour, keyboardist/vocalist Rick Wright, and drummer Nick Mason - incredibly wealthy, and ultimately spent a mind-boggling 937 weeks on the Billboard 200. In addition to its massive commercial success, Dark Side of the Moon was also a career-defining artistic achievement for the British quartet, one which marked Pink Floyd’s transition from an experimental, jam-oriented progressive outfit primarily beloved by college students and assorted “heads,” to a top-echelon rock act characterized by its rich songwriting - as well as by Waters’ mordant worldview. Recorded at London’s Abbey Road Studios in various sessions from May 1972 through January 1973, the album’s cerebral soundscapes (exquisitely captured on tape by Abbey Road engineer Alan Parsons, and mixed with the help of veteran producer Chris Thomas) and heavy lyrical musings on the human condition inspired countless bong-fueled headphone listening sessions in darkened bedrooms, but its songs also sounded great on FM (and even AM) radio. Oh, not that one? Sorry.

[@weldabar]

Will we mine it if it turns out it's composed of precious metals?

[@greendraggun]

Some people don't know that the Other Side is not the dark side.

[@Zerkbern]

Sci5 ??? What is the significance of the "Five"?

[@CyberiusT]

Guess: Tie-in with "ELI5"? ("Explain Like I'm 5" in case that's an acronym you haven't come across before.)

[@nunjahBitnes]

The amount of craters in the dark spots let's me know they're fairly new. The fact that most of these dark regions face earth, makes me think that these fairly new darkened regions, face the earth for some unknown reason... what could cause tidal lock, maybe gravity makes it oblongated when it's soft, aka melted.... I wonder, could those fairly new darkened regions be man made? Like not in our primitive ways, but the advanced techniques of the past that was greater than this present day society? I think of the Indian Mythology that explains the use of flying ships and atomic blasts..... THOUSANDS AND THOUSANDS OF YEARS AGOOOOOOO

[@TheDeadOfNight37]

Ok wacko

[@michaelblacktree]

I clicked on this, just to see all the people LOSING THEIR MINDS because you said "dark side" instead of "far side."

[@ytkanekong3091]

Why don't we have orbiters taking pictures during an eclipse to see the effects of the sun and the surface of the moon? How do we know that there isn't some kind of effect that only happens during an eclipse? Especially when the moon gets a lot of the sun's extreme heat and radiation!! Do flowers bloom? Do Martians come out? Is there gas released from the moon?

[@Idlepit2]

It's not called the darkside, it's called the far side

[@WormholeNavigator]

There is no dark side, only a far side :)

[@examinatorant4522]

good grief do we thank Pink Floyd or Gary Larson " can I be excused my brain is full" 😳

[@CyberiusT]

Larger than the Big Island, eh? Guess that rules out TMA-1, then.

[@rvw2bdragon139]

Wow do some research people. The term is applicable, it refers to radio communications from earth. When an object goes behind the moon from earth, it goes radio dark until it reaches the other horizon. So the term 'dark side of the moon' doesn't have anything to do with visible light or usage as a lyric. It's a term for communications blackout caused by craft moving behind the moon and losing line of sight for their radio. The dark side of the moon is the shadow created by the moon for any communications equipment on earth. ex watch armageddon and pay attention to ground control when they slingshot around the moon or go dig in NASA archives for the Apollo missions and listen to ground control when the capsules go behind the moon.

[@humanity1581]

I hope China will share more of what they saw and know about the back side of the moon.

[@benjaminbelay8991]

Didn’t mention earthshine!

[@Zakna]

decepticons shot it down !

[@joyl7842]

I bet the huge metal concentration is a crashed Decepticon city-ship 😛

[@Ave_Echidna]

Nah, it's clearly a part of Lord Genome's flagship

[@russlehman2070]

"There is no dark side of the moon. As a matter of fact, it's all dark." Pink Floyd.

[@LordDeBahs]

" dont chase you own shadow "

[@DearHumanity48]

Why did Reed sound like Neil deGrasse Tyson before I saw his face?

[@spekenbonen72]

1st fact: There is no darkside of the moon. Only a side we can't see from earth. When the moon is between the earth and the sun, the invisible side is fully lit. 😉

[@tombirol1693]

It's the "Far Side".

[@BMrider75]

It's FAR side of the Moon, DARK is a Pink Floyd Album !

[@michaelmicek]

... that they named after it.

[@michael.mcshan]

I can’t believe that you called the FAR side of the Moon as the dark side!

[@MrT------5743]

Just because you do not know 'dark' has more meanings and not only refer to a lack of light does not make the term dark side wrong.

[@knexmanmanmanman1781]

the rabbit Goku took up there to make treats for all the children of earth

[@carlospenalver8721]

I think the dark area of the moons bright side was where Pangaea was before ascending to the least point of resistance on earth where Antarctica is and the force is what split Pangaea into the start of the continents we see today which drifted apart even further but this is just a fraction of a theory I have trying to connect a multi million earth year or more multi galactic travel if conspiracies about the monoliths we find today truly are alien. Like how can you tell the dating if it’s all part of the same ship that came here after having to depart the previos planet for whatever reasons , climate change in Sagittarius or population control, prolly spent 100,000 years or more in the original galaxy unable to find habitat planets before zipping this way searching maybe 100 galaxies till they arrived or maybe not. Maybe I’m just wrong or maybe I’m just LOCO insane in the membrane 😊