The Moon: Crash Course Astronomy #12
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- Опубликовано: 28 май 2024
- Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation.
This episode is brought to you by Squarespace: www.squarespace.com/crashcourse
Check out the Crash Course Astronomy solar system poster here: store.dftba.com/products/crash...
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Chapters:
Introduction: The Moon 00:00
How Big is the Moon? 0:54
Internal Structure of the Moon 1:56
The Moon's Surface: Highlands and Maria 2:15
How the Moon Formed: The Giant Impact Hypothesis 3:42
The Moon's Craters 6:32
Water on the Moon? H2O Yeah! 8:06
Review 9:06
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PHOTOS/VIDEOS
Moon Phase 47.7% svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio]
The Blue Marble visibleearth.nasa.gov/view.php... [credit: Credit: NASA Goddard Space Flight Center Image by Reto Stöckli]
Dramatic Moonset www.eso.org/public/images/potw... [credit: G.Gillet/European Southern Observatory]
Structure of the Moon: en.wikipedia.org/wiki/Moon#med... [credit: Kelvin Song via WikiMedia Commons]
Crater Science Investigations: svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA/Goddard Space Flight Center]
Lunar crater Daealus commons.wikimedia.org/wiki/Fil... [credit: NASA]
Mare Humorum commons.wikimedia.org/wiki/Fil... [credit: NASA]
Luna 3: nssdc.gsfc.nasa.gov/imgcat/htm... [credit: NASA]
Farside!: lroc.sese.asu.edu/posts/298 [credit: NASA/GSFC/Arizona State University]
Theia Earth Collision: io9.com/the-incredibly-violent... [credit: Ron Miller, used with permission]
Earth Seen From Early Moon: io9.com/the-incredibly-violent... [credit: Ron Miller, used with permission]
Moon Struck: svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA's Goddard Space Flight Center]
Tycho: www.nasa.gov/images/content/41... [credit: NASA/Goddard/Arizona State University]
Double crater on the moon: www.esa.int/spaceinimages/Imag... [credit: ESA/SPACE-X (Space Exploration Institute)]
Stream of Craters: www.nasa.gov/mission_pages/LRO... [credit: NASA/Goddard Space Flight Center/Arizona State University]
Full Moon: en.wikipedia.org/wiki/Moon#med... [credit: Gregory H. Revera]
Rille on the valley floor, photographic mosaic from Apollo 15: en.wikipedia.org/wiki/Schroter... [credit: NASA]
New Views of Lunar Pits: lroc.sese.asu.edu/posts/230 [credit: NASA/GSFC/Arizona State University]
Crater Erlanger: www.nasa.gov/mission_pages/Min... [credit: NASA/GSFC/Arizona State University]
Its kind of crazy thinking the next moon walking astronaut is some teen out there right now. We're all rootin for you kid.
Hobbes I'm giving a thumbs up both to your comment, and your user image.
***** True, but we should never forget the immortal words that America spoke from the moon.
"FIRST!"
Hobbes It's probably a chinese, and he/she probaly doesn't have acess to this video :'(
***** It was One.. (One small step...)
Khenric Probably America or Russia
Hearing you talk about the next person on the moon being a teenager today. I’m 16 years old looking to go to college to study aerospace engineering and work for nasa. That last part of the video got me pumped, Mr plait.
It's pretty late in the series to say this now, but I'll say it anyway. I love the way Phil talks about anything in this series. There's a "childlike wonder" in his face and voice clearly showing that he's passionate about astronomy and what heavenly body is topic to a particular episode. Things like this make me wish I could afford the Patereon subscription.
Im always pausing the animated intro too see all the fun facts :)
So true. I can relate
in Arabic, the moon is the basic reference of beauty. when we see someone beautiful we say "he/she is a moon"
Wow thanks for sharing. Cool to know
@@kuckoo9036 hahaha
best amv متكولون ؏ البنت الحلوه يا قمر ! Wow
best amv impressive
Fu** your arabic
The moon: crunchy on the outside, chewy in the middle
cheese
7:50 - so glad Phil mentioned the "skylights", I find them fascinating. Phil Plait, you are a treasure to us science nuts!
My word, I was thinking about doing an aerospace degree and that ending has inspired me to do it even more so!
I thought this episode would begin saying "The Moon is a satellite. That's a profound statement, and one that's not really all that obvious" :(
leopolditowtf Heh. Nah, that joke was played out. :)
leopolditowtf but Phil's got other callbacks coming! Patience, intrepid student of astronomy :)
-Nicole
leopolditowtf Haha :-)
Sattelites are moons
Ha
In my opinion, the best crash course series ever.
False. The Moon is made of cheese. Source: Wallace and Gromit
i wish it was made of cheese
Vatredox
Sorry, but we have some moon rocks and they're made of rock, not some mass of fat and polyamides.
Vatredox, No! The Moon ISN'T made of cheese! That's some superstition people believed in during days long gone by
Yeah I wish but we’d probably die from the “Moon Cheese”
The moon is indeed made of cheese.
Okay Phil, you been teasing me long enough with those books. I ordered Apollo 13
These vids just keep getting better and better. Thanks for the great work!
These videos are awesome! They're very well made! I can't wait for more! I LOVE astronomy in particular! Science FTW!
Yea, "awesome"... Totally not crange and fake af too.
8:46 You are true. The PM of India already declared that, a child of India will step his foot on moon on or before 2022.
Not possible
Which PM? The tea seller? You have to be so stupid to put a tea seller as the prime minister of India and expect the country to develop. Get serious. The country has gone backwards in the past couple of years since you made him a PM. Worse part is most educated people in India cheer him on. Look at the dollar to rupee, look at the high cost of living. Look at the economy grading of India by the rating agencies, you are together with countries like Pakistan, Bangladesh other African countries and you think you have done well? Misplaced priorities.. start building toilets and clean up your cities before even thinking of going to the moon. Also don't ever compare yourselves with China. They are 50 years ahead of you. If I was a voter in India, I would rather vote for a young vibrant educated leader like Raul Gandhi than vote for a tea seller. Why don't you employ a tea seller in your company as management and expect your company to prosper?
A lunar colony should be named "Selenia" from the Greek name for the Moon.
TheJaredtheJaredlong You act like scientists are good at naming things. If a colony is every set up on the moon it will probably be called Lunar Base 1 or something like that.
Dragoneye No, even simpler, just "Moon Base" you know, like the World War, then later on when whoever competed with the guys that made the first moon base make their own they will call it "Moon Base 2 and everyone will have to rename the original "Moon Base" in the books into "Moon Base 1".
Dragoneye
I don't think that's true at all. NASA has always been good about coming up with cool names. Just look at the Mars rovers: Spirit, Opportunity, Curiosity and Sojourner; they _could_ have all been MER1,2,3,4... but that doesn't inspire the average person. And they traditionally use a lot of Greek names: the Gemini and Apollo Programs, the Saturn Rocket, the Atlantis Shuttle. NASA would _never_ get adequate funding it they named something as ambitious as a moon colony "Lunar Base 1" that's so boring; normal military bases don't even have names that boring.
TheJaredtheJaredlong Not to mention all the craters and maria on Luna
***** Yeah, but the World War wasn't named by scientists. It was named by historians. They're the ones who suck at naming things. Scientists are often hilarious and quirky (or perhaps "quarky") when it comes to naming things.
What great crash course! It's always fun learning something new about something you at least think you know so much about.
Great, concise video with a lot of information and presented very well. Thank you.
I vote that we rename Earth's moon, and call it Luna. Calling it "The Moon" is similar to always calling your own child "The Kid", but calling other people's children by their names.
Also, if we were to adopt the name "Luna" as the proper name of our moon, then the "face" we see during full moon should be called "The Lady in the Moon", or "The Face of Luna". Also, a "respectable" name of the Moon could be "Lady Luna" ("Lady Luna is rising her full face tonight").
Also, I agree with +TheJaredtheJaredlong , a lunar colony someday on Lady Luna could be called Selenia, that sound great! Right, because the moon's name in Latin is Luna, and in Greek it is Selene. To be more complete, note that the names for the Greek/Roman goddess of the moon were Luna, Artemis Diana, Phoebe, Selene, and Cynthia (I guess they couldn't make up their minds what to call her, lol).
My suggestion stands, though, to give the moon the name "Luna", since "lunar" is the adjective we use when referencing the moon.
Although, I image this name change will never happen, as people are too accustomed to calling it "the moon"; it would be about as weird and difficult to adopt as changing Earth's name would be.
Normally your videos are a bit hard for causal watching but I liked this one.
Was just looking for videos about the moon but I ended up subscribing! Great videos, great host.
KurzGesagt does a great video on the moon as well, amazing channel
MaximilianMus How powerful are the Nordic countries?but real guy has 20000 subscribers
***** he has half a million subscriber
8:56 felt like he is talking about me !! God i hope i will land on the moon what an honor!!
I think most of us here are like that :p
It's not me, I'm not going up there, no way.
+Bloodmoon why😂 it's more like a dream why not
+Bloodmoon 😪 but i feel it's worth it
im gunna be first on Mars!!
i'm doing some research on the moon and this is helping. i like his delivery and way of conveying information as well, it's not dry or down-wind. thanks for posting.
No one from 2019 here? We’re going back sooner than expected.
Yo I'm here for
Here from the future, we're there bro.
From2020
Such a good series. Thanks for these highly educational videos.
Awesome episode! Thanks again CrashCourse and Phil :)
He was actually right! Nasa has geared itself for the Artemis programme to help humans establish on the moon.
He was very much wrong about the age though.
Excellent video that covers a lot of facts about the Moon. Nice job Phil!
Beautiful!! Thanks Phil.
Really nice videos, maybe for the next series you could do something related to philosophy, talking about different philosophical approaches and the most famous philosophers, for example :)
i could listen to Phil all day
Another amazing video from Crash Course! :D
Thank you Phil for sharing your passion.
Listening to you is always a pleasure : so damn interesting, and even beautiful. :)
You want to know what's REALLY on the moon?
It's the Grineer!
Gotta love Warframe
As it turns out: it's actually the Orokin.
Go figure.
+Morec0 you mean the Hive
Yay Warframe.
Never heard the explanation about the crustal thickness variety. Fascinating!
I love these episodes, and I'm looking forward to showing them to my kid eventually.
Thank you Crash Course!
There's a Crash Course channel for kids too.
"That's one small step for man, one giant leap for mankind." -Neil Armstrong, July 20th, 1969.
For a brief moment, the Moon resembled the Death Star, which excited my inner fan.
Loved this :) cheers again guys :)
I just love learning with you, guys.
Thank you for making this astronomy video, Phil Plate and all the others at _Crash Course_! The Moon is also very interesting, but I do not think our is the most interesting of all the moons in the Universe or even the Solar system. When are you going to talk about other moons? Anyway, thank you for the video!
I will go there someday!! :)
i love this man!! im not failing my astronomy class because of him!
the sun animation at 3:58 are trippy.
Her name is Luna
***** And the Sun is also called Sol. But do you know what Luna and Sol mean? The Moon and the Sun, just in Latin, it makes no effing difference.
a moon refers to a satellite hovering over a planet
Luna refers to the Earth's Moon
Sun and Sol refer to the same thing, our Star
imagine if the Sun was simply called Star, that is what it is like calling our moon, Moon, and not Luna
***** Are you for real? Like, you aren't trolling at all? You really don't know what Latin is? I mean, August 2011 is pretty damn old for someone to be using an account for just trolling people, but stranger things have happened.
***** Nope Jonathan is right, luna is just latin for moon, for example in my language we call moons are luas and the Moon is Lua, is the same name just capitalized, now star and sun is other kind of problem, also in the times that this words were created any other object on the nightsky would be wrongly called a star, even if they saw them, so that's why no one would talk about lunas (nor planets), sorry for my English, hope you understand my point.
***** Problem is, in many other languages, the Sun and the Moon have different names, and even if you standardize it as Sol and Luna, Spanish uses luna for every moon, and capitalizes ours. Sol is a bit more rare to call a foreign star, but not unheard of.
Umm I see everyone here years ago but im here with the Corona Virus
Elyza Gonzalez .thats true
up
ok boomer
@@yoyoyoyo1826 brother?
Thank you for the many subtitles .
these are amazing
“Probably not that far, only 20,00 kilometers away” 😂
We used to call moons satellites rather than moons. Moon is the name of our satellite.
I really liked this episode of Crash Course Astronomy because it really enlightened me about the moon and its origins. As I really like astronomy, I look forward to more videos about the universe. Because of this video, I knew more about the Moon. I really wish that I could go to the moon in the near future when there are colonies there.
Great video!!
The Moon rocks! Woo-hoo.
That was CHEESY
Only intellectuals understand.
MOONBASE 2020!
what for?
Inflatable chambers inside lava tubes. Protection from meteorites and radiation.
Aeiou
I AM FROM THE FUTURE AND TRUST ME THERE IS ZERO CHANCE OF THAT HAPPENING MABYE UNTIL 2026
@Eugene Miyelis lol
(8:49) I loved the end of this episode! It was kinda sweet. Go teenage students!!
like these videos, not just the same old stuff heard a million times before
I wonder if the moon water is safe to drink if thawed out
Probably safe than the water in Flint
Joseph Preece I don't think you'd even need to boil it. Boiling is to kill off biological pathogens like bacteria and molds.
But I'm not an expert, so don't quote me on that. You should definitely find an expert to ask before you drink any moon water.
Until we build a straw long enough; we'll never know.
@Joseph Preece why boil it? its not like there is bacteria in it lol if so then that would be interesting
I would definitely test it for radiation.
We really need to explore the shit out of the moon, and then colonise it. Maybe we can grow plants indoors, or something?
Why though
Master Chef Just in case we all die down here.
Neceros If we have the technology to colonize the moon, then we can solve problems down here on earth. Also, the moon basically has like no gravity.
X disaster events
Neceros Since the crust and mantle are so thick/solid, I vote for underground citiescapes
Great episode!
This is why I look forward to Thursdays. A new Crash Course Astronomy!
Mark Young So KSP Dev Blogs on Tuesdays, and Crash Course Astronomy on Thursdays. Weekends are starting to lose some of their lead in "best days of the week" running.
So... no space Nazis?
〉Phez〈 Not until humanity colonizes it. No humans = no Nazi's.
Fortunately, with moon nazi's comes moon Captain America's.
〉Phez〈 probably got messed up by the hive.
〉Phez〈 They are all under the surface, remember how he said we know way more about the surface than under it.
〉Phez〈 They are all under the surface, remember how he said we know way more about the surface than under it.
Eric D Conclusion: The moon is made of molten space nazis that are still slowly solidifying.
When you're a teenage student in a country who just now got an interest in science, math, and engineering.
I've always loved our moon & I'm actually going to get a tattoo of it on my back / underneath my neck.
So learning more about the moon always fascinates me :)
Well you were right. Artemis 1 launched yesterday!
Would have been cool if you explored the Georeactor Theory in this episode. This new theory on the formation of the moon would explain much more than the Giant Impact Theory.
If you are wondering, in short what the Georeactor theory is, is that on the boundry between the mantel and outer core, called the D" (D-double prime), alot of fissile material (uruanium and thorium) collected. It just wasnt dense enough to start a nuclear reaction. Then a large comet or asteroid hit the earth causing a compressive shockwave which lead to a giant (and I mean f'ing huge) explosion which flung huge pieces of the mantel and crust into orbit.
This explains the isotopic similarities and dissimilarities (some isotopes are more common deep down than in the crust of the earth) between the earth and moon.
It is also testable by drilling into the crust of the moon and looking for an isotope of Xeon that forms from the decay of uranium and thorium.
It probably isnt THE theory to explain the formation, but the Giant imapct theory has far less going for it in explaining what we find on the moon.
If you want some extra information here is a link: www.sciencedirect.com.proxy.library.uu.nl/science/article/pii/S0009254112006262/pdfft?md5=f85df82e5eddfd7a42ea96c37e570060&pid=1-s2.0-S0009254112006262-main.pdf
Azivegu wasn't the georeactor scrapped recently?
Azivegu I disagree
@@bullrun2772 you have persuaded me
Am I the only one that has wondered what happened to Theia after the impact or is it assumed that Theia was completely destroyed by its impact with earth?
ASTRONOMMMMYYYY! Finally in Crash Course!!! Ahhhh I'm so happy right now! My life is complete
Nice work Phil
Crash course philosophy
Salomon Flamenco i would love it may be they would bring in the guy from Wisecrack or philosophy tube.
thats literally what this is. Theres no phsyical evidence that the moon came froma collision with some outer space object with earth. Otherwise, a quarter of the earths service would be a giant crater. It would literally look like on the map a crater the size of moder day asia. It doesnt make geometrical sense.
But I just saw an episode on sci-show that talked about recent findings that made scientists doubt the Thea hypothesis shouldn't have this crashcourse episode briefly discussed other hypotheses of formation of moon.
Aquib Immanuel well I would guess that there simply isn't a better hypothesis jet
Aquib Immanuel There's new ideas being explored, but the Thea hypothesis is by far the best one.
Aquib Immanuel The timing of our respective episodes is kind of funny. I noticed it while this one was uploading. SO IT GOES!
The SciShow Space episode discussed a potential problem with theory, based on fairly recently published research. Also, it didn't concurrently prop up any alternatives. The bigger takeaway, for me at least, is that it's just a great example of how quickly our knowledge and understanding changes, which is super exciting. Science!
-Nicole
CrashCourse thanks for the reply.
Aquib Immanuel That's how most scienceisthey praise it and nail it into you like it's cut in stone fact
then they find something new...
then THAT new thing is the fact
wat
this was awesome thanks
Great video phil
I'd love to see some volcanic activity on the Moon. Yeah, people on Earth would lose their shit, but it'd be a hell of a sight.
can moons have moons? basically is moonception a thing?
Yup ;)
Majdi Alnassrallah Technically it is possible, though not for long. The moon's moon will eventually become the planet's moon because of gravitational forces. :)
GaMePussy Thank you sir, I already have my answer.
that sounds like such a Gavin question.
cool show!
my teacher over the years have made us watch you because you explain evrything very well
Is it possible that the Maria regions on the near side of the moon are shielded by the Earth so they don't get the same bombardment of asteroids as the far side of the moon?
Digs Fossils-n-Knives their composition and morphology suggest impacts, or at least some sort of energetic event(s) that caused the release of lava to form basalt "seas" that didn't happen on the far side.
In other words if the earth shielded the moon on the near side there would actually more things that need explaining, instead of less...
If on the other hand the moon was simply smoother and less cratered but with the same composition then such a theory would make a lot of sense.
The Moon _is_ the only one, just like Venus is the only Venus. The Moon is the name of that object in English. Once we discovered that other planets had natural satellites, we decided to call those "moons", making a generic out of what had been a proper noun. Much like calling all facial tissue "kleenex" no matter who makes it.
Imagine if we had decided to call all other planets "earths". It would be the same kind of thing.
The fun coincidence of this coming out the same day of the sci show talking about the moon's composition throwing a wrench into the impact theory
Bartholomew Mhmm The gears are pretty strong though, and there aren't really any competing gears that can chew up wrenches as well.
Thank you SOO much I knowed all of this
Is there a sort of, impact basin or bulge on Earth as a result of the collision between Earth and Thea?
Probably? I mean, something that big would, I imagine, cause some sort of unique landmark, but the Earth was pretty "fluid" back then
Yeah, I wouldn't be surprised if it sort of just, sloshed its way back into shape.
Patrick Adams It probably happened too early in Earth's history, while it was still pretty molten, and just evened out
Brad Gaétan Faucher Even if it weren't early in Earth's history, I'm pretty sure the impact would cause both to revert to their molten states
SomeDudeOnline Pangea?
A mars sized planet named Thea crashed into earth forming the moon, ...but that's just a theory a Game theo- oh wait...
MaximilianMus Its actually a hypothesis *Adjusts glasses*
Cesar Lopez No, there is evidence for this hypothesis (isotopes etc) so its a theory.. * confiscates your glasses*
Alex Becker Of course there's evidence to support it, no one would really take it serious if it didn't. However, it isn't widely accepted in the scientific community, therefore it's still a hypothesis. Just because there's evidence supporting some aspects of it (you mention isotopes, which I'm assuming relates to the age) doesn't mean there couldn't be inconsistencies in other parts. Scientist are supposed to have high expectations for any idea looking to explain any natural phenomenon or answer any question. If the resounding majority won't accept it, then it isn't a theory. Now it could actually be a theory and i may simply be unaware of it, but if it is I'm sure you'll correct me on it. :)
Alex Becker yay
-- but it is more liked
Moon Illusion, new band name, I call it.
Love the videos!
Frank DiMeglio is the world authority on gravitation BY FAR.
Isn't the actual name of "The Moon" Luna?
Technically yes
wut is ur language
understood o_e
+Nick Gur Kind of? It's complicated. Most astronomers and astrophysicists just call it by whatever word is used in their native language, so we'd still just be calling it the moon. But if it was to have an official universally recognized name, it would likely be Luna, yes.
Yep. Same as how Earth does indeed have a Roman mythology name like all the other major planets: Terra. We rarely use it (except in science-fiction sometimes), but you can see evidence of it in words like "terraform" or "terrestrial". Similarly words like "geology" come from the Greek version, Gaia.
do you think thea created the pacific ocean basin
PrincessTS01 No, the entire ocean/land system formed much later. Plus, plate tectonics have reshaped our world many times.
To expand a bit on what Nolan Thiessen, oceanic crust is young (several hundreds of millions of years), and gets formed and subducted constantly, and based on their rates of motion we know the atlantic ocean didn't exist up to 200 millions years ago (c.f. Pangea) and the pacific ocean plates were part of a huge ocean that covered most of the earth called Panthalassa. But on the time scales of the earth's full history, and the formation of the moon, this is peanuts (about 200 million years vs. 4 billion years...).
The current hypothesis is that the Pacific ocean (well, Panthalassa) started to form about 800 million years ago, when Rodinia, the supercontinent that preceded Pangea, started breaking apart.
In other words there seems to be a cycle (called the Wilson cycle), where the continental land masses break apart from a supercontinent, drift around the world, and then smoosh together to form a new one, and currently we're in the middle of that cycle where the pacific ocean is the remnant of the previous super ocean and the atlantic ocean is the new one that formed in the middle of Pangea.
But this entire multi-billion year tectonic plate process is still younger than the early processes that formed the moon, and only started happening after the earth cooled down.
Note that although there's plenty of evidence to support these ideas in general the particular details are not as clear (especially when you try and reconstruct earlier times) and it's still a very active field of research.
Fantastic.
thanks, nice vid
Next video according to youtube: "UFO DOCUMENTARY :Aliens exist on the moon 2015 Full [ New UFO Sightings ] - Duration: 1:25:55. by UFO Channel 977,407 views"
this makes me extremely sad.
Ivo Temelkov
Who makes these videos? To me it's just pollution. Scratch that, even pollutants have their uses.
@@unf3z4nt Cultural vandalism, according to NASA.
I think instead of going to Mars they should focus on the moon, yeah would be difficult to colonize the moon but.... EVEN MORE difficult to colonize MARS!!!!!
Nope
no, mars is somewhat less hostile than the moon, and it has greater scientific value
Jesus Ramirez Romo
Mars is even further away so it would be better for those who are tired of being stuck on a world filled with idiots.
@@@unf3z4nt Yes, well, we can discuss who the idiots are when they all die of radiation sickness on the way there. We're not supposed to know this, but radiation is the actual reason why no one has claimed to have sent people beyond LEO since 1972. Look up gamma rays and the come back here and let me know how you propose to shield the crew on a five year voyage to Mars from them. I'll be waiting.
Don Hyon really
You should definitely make one about mars... could possibly shed some insight on my homework.
Glad I watched the video :) worth the time.
...Why are there still creationists?
Luther Paul why are there -creationists- trolls
PMW3 How did you cross out a word like that?
Luther Paul Because mama and papa told them so.
Luther Paul Because they grow with the fairy tales of god or allah or whatever and unlike other fairy tales like santa or the easter bunny, they can't be disproven so as adults, they cling to their fairy tales because the alternative is too scary to think about for a lot of people.
Luther Paul Because Jesus n' shit
The big moon on ESO..
I hope my son become what I couldn't..🇧🇩
very nice
This is dope.
Our moon is actually less important we didn't bother to give it a name. after we discovered there were other moons. It is not like we always knew there were other moons. We are not egotistical just lazy.
Traveler Finder The moon has another name, Luna.
***** Luna is a common misconception. Yes, its another way to address the moon. No, its not the proper scientific name for said satellite. Same goes for Sol vs Sun, if I recall.
Traveler Finder It's the opposite, really. The correct term is satellite. Moon is just the name we gave *our* satellite. Calling other satellites "moons" is the lazy part, not calling our satellite by its name.
Nice video.
We watched this in class today!
This guy does a great job.