How many moons does the Earth have?

Рет қаралды 29,522

Жыл бұрын

So we all know that the earth has just 1 moon right? Well the actual number of moons that the earth has might be a little bit more complicated than that.
Before we start, it’s important to make sure we have a definition of the term moon. I’m going to say that a moon is a natural satellite that orbits a planet, dwarf planet or other solar system body. Moon is actually a bit of a colloquial term derived from our own moon, but I’m going to use the term moon instead of natural satellite.
In this video I’m going to look at a number of possibilities for extra moons of the Earth. These include ghost moons or Kordylewski clouds, quasi satellites, trojans and temporary satellites.
Planet maps from NASA
NASA/Goddard Space Flight Center Scientific Visualization Studio. Constellation figures based on those developed for the IAU by Alan MacRobert of Sky and Telescope magazine (Roger Sinnott and Rick Fienberg)
svs.gsfc.nasa.gov/3895

Пікірлер: 101

@Acein3055 Жыл бұрын

I really like your format. No annoying distracting music. No annoying distracting videos of the narrator. Just good info about the topic. I wish other youtubers would make videos like yours.

@cleanerben9636 Жыл бұрын

didn't even know those clouds existed. Good video thank you!

@LearningCurveScience Жыл бұрын

Yes me too. I think they are the coolest part of the video. I should have saved them till last shouldn't I.

@OVAstronomy Жыл бұрын

Wow. I find it incredible that objects such as 614689 have only just been discovered in the past couple of years considering that it's essentially just leading Earth in its orbit, makes you wonder how many more there could be!

@PizzaPowerXYZ Жыл бұрын

It also tells you how fast humans are advancing in technology, wether good or bad

@MrLince-hr4of Жыл бұрын

sounds esoteric shit

@lightshado3 Жыл бұрын

I just discovered your channel and I’m astounded that you only have 20K subs. This is Astrum and SEA level content

@LearningCurveScience Жыл бұрын

Thank you so much. To be honest I've grown quite quickly quite recently. I have a quite erratic upload schedule due to my full time job, so I post videos when I have the chance. My recent growth has been amazing, and I feel like my little band of geeks has gained quite a lot of new friends.

@benj5889 Жыл бұрын

@@LearningCurveScience it's only the start!

@Alan_Hans__ Жыл бұрын

With all those bodies flying around it's surprising that there's not more bit hits to earth. It's also pretty incredible that objects so small and so far away are detected.

@Silent_Sounds Жыл бұрын

it actually happens somewhat frequently that an object from space breaks into the atmosphere and disintegrates before it reaches the surface due to such a high speed in a more viscous environment than the vacuum of space. Actually just this week a meteor broke through the atmosphere where I live in Salt Lake City. Sounded like an explosion went off because of its velocity, but it never struck the surface.

@tommapar Жыл бұрын

Is the one eligible for a name the one that goes back and forth in a tadpole orbit ? If so, I propose to call it Sisyphus, for the Greek mythological figure that was doomed to the depths Hades, cursed for eternity to push a huge rock to the top of a mountain, only for it to fall back down again, and have to start over again ad infinitum. EDIT: Never mind, the name is apparently already taken by 1866, and is already classified as a minor planet.

@joz6683 Жыл бұрын

Excellent, I have been researching the Earth-Moon system for a novel, that I have just finished. I must say that I wished I had seen this 1st as it would have saved me a lot of time and I still found things out. All the best from a new subscriber you will get a mention in the book if it is ever published.

@Issicra Жыл бұрын

Some of those orbits are crazy. I never knew they could do that.

@FoxChaotica Жыл бұрын

people who watch QI: *sweats profusely*

@LearningCurveScience Жыл бұрын

Ha ha, I think QI have covered this question 3 times... and got it wrong every time.

@dougdouglas3945 Жыл бұрын

This is the second video I've watched from your channel...SUBSCRIBED. Keep up the good work

@LearningCurveScience Жыл бұрын

Thank you very much, I'm glad you're enjoying my videos.

@Soupy_loopy Жыл бұрын

I'm pretty sure if earth hasn't cleared its orbit of all these other bodies, then earth should be demoted to a dwarf planet.

@charlesstewart4587 Жыл бұрын

Did not know about those Kxx Clouds. Great video! looking forward to the next

@cyrilio Жыл бұрын

Next video: how many moon-moons do we have?

@LearningCurveScience Жыл бұрын

Funny you should ask...

@pandoraeeris7860 Жыл бұрын

The Earth has only one moon. It has many satellites though.

@johannaverplank4858 Жыл бұрын

Very informative. Thank you!!!

@benj5889 Жыл бұрын

Really cool choice of topic

@boa386 Жыл бұрын

This gives me some QI flashbacks lmao

@Anroth98 Жыл бұрын

And thank you for sharing

@vdiitd Жыл бұрын

Very informative video. Thanks for sharing the information. How did you create those orbit graphics?

@LearningCurveScience Жыл бұрын

Thank you. I make all my animations using Blender. Most of them are moving objects on a path, some are paths within paths.

@toddhull6836 Жыл бұрын

Our moons name is Luna

@thomaskopp25 Жыл бұрын

Mond

@moonliteX Жыл бұрын

no it's not. it's "kuu"

@herobrine8763og Жыл бұрын

Isn't that the planet that crashed into the Earth billions of years ago?

@moonliteX Жыл бұрын

@@herobrine8763og it's the aftermath of that

@toddhull6836 Жыл бұрын

@@herobrine8763og Theia was a mars size planet that alledgedly crashed into earth and formed the moon .

@TheCosmicGuy0111 Жыл бұрын

Nice

@david_porthouse Жыл бұрын

The motion of a Trojan relative to the Earth resembles the nutation of a spinning top.

@PeeperSnail Жыл бұрын

I'm going to beat the astronomers to the name. I hereby declare 614689 is called Sprinkles.

@PopeGoliath Жыл бұрын

How is a flyby also a capture? In order to be captured, wouldn't it have to not be a flyby? My best guess is that at some point during its fly by, it loses enough energy to no longer have escape velocity, but then gains it back again before completing an orbit.

@PizzaPowerXYZ Жыл бұрын

9:53 is a good analogy because it doesnt get fully captured, it ends up flying away and so is also a flyby

@PopeGoliath Жыл бұрын

@@PizzaPowerXYZ I'm trying to figure out how the definition of a flyby capture is different from a regular flyby.

@darmorel549 Жыл бұрын

If it completely an orbit, it consider a capture. Without an outside force (in this case, the sun), in theory something that orbits a planet once is always capture (I'm sure there some very weird edge cases where this is not the case mind you)

@cinimatics Жыл бұрын

So....earth doesn't have rings. But particle clouds. Fascinating

@patrick247two Жыл бұрын

Thank you.

@doorran Жыл бұрын

I don't know but my brother mooned me the other day.. so there's another one.

@kuwaitisnotadeployment1373 Жыл бұрын

This just made me think of something. How are scientists able to say astroids like these aren't a danger to the Earth considering the three body problem? Or is that why there's always that tiny percentage of it hitting us usually shown at the end of the prediction? I guess I answered my own question....

@Yezpahr Жыл бұрын

You partly answered your own question. But in space it is because "the three body problem" is a two-body problem in disguise. (!) The barycenter matters, scale matters, mass matters, distance matters. Those pendulums you see with "the three body problem videos" is actually a four-body problem because it all wants to go down, but the other arms are yanking under momentum and gravity too which won't create nice patterns **ever**, just chaos. But if you had it in zero g and swung the pendulum, everything would work like clockwork, if you had proper masses/swings. (Also, to discuss orbits of these slightly rogue objects the regular pendulum example everybody gives is pointless).

@kuwaitisnotadeployment1373 Жыл бұрын

@@Yezpahr you see this is what I wish we had more of. When someone knows some knowledge another person lacks, instead of ridicule or ignorant remarks like I see 99% of the time. We should be like this and educate each other with respectful and altruistic comments. Thank you for the reply ✌🏽✌🏿✌🏻 I'll have to think on it some more before I respond 😉

@kuwaitisnotadeployment1373 Жыл бұрын

@@Yezpahr also just fyi everything I learned about the three body problem is from the scifi trilogy series "the Three body problem" not KZfaq videos but that's neither here nor there I just wanted to say that

@yeyeTF2 Жыл бұрын

beast video

@vergilthearm-ripper2496 Жыл бұрын

2 moon moonson

@caelestigladii Жыл бұрын

Now, count Saturn's moons.

@patrykolaf353 Жыл бұрын

Can i ask you from what part of Britan does your accent come?

@LearningCurveScience Жыл бұрын

I'm from the north

@patrykolaf353 Жыл бұрын

@@LearningCurveScience Thanks, i love guessing these. I also like the film ;)

@joshuahudson2170 Жыл бұрын

Fun fact: Earth's moon orbits the sun and would remain in orbit if Earth were removed. This is true enough that the moon's orbit around the earth is a small correction to its orbit around the sun if viewed from a perspective with the sun in the center.

@robertmccormack1208 Жыл бұрын

Love this video keep up the great work

@fench1234567 Жыл бұрын

"That's no moon! It's a space station!"

@ZEZERBING Жыл бұрын

Geeshus... What a name.

@Ryarios Жыл бұрын

That’s no moon, it’s a space station!

@moonliteX Жыл бұрын

death star

@Ryarios Жыл бұрын

@@moonliteX yes, but the quote in the movie is space station.

@jameslays06 Ай бұрын

Earth Has 2 New Moons, The Total Is 3!

@lemonstealinghorsdoeuvre Жыл бұрын

I am racking my brain on how we could get to the Lagrange point that is ahead of our orbit. Is there a way?

@StarHorder Жыл бұрын

How do you even detect something as small as cd3?!

@edmundkempersdartboard173 Жыл бұрын

I like to think I have little microscopic moons orbiting me.

@thesunexpress Жыл бұрын

3753 Cruithne -- pronounced "crew-with-knee"

@BadChess56 Жыл бұрын

could a temporary satellite stay in orbit?

@GhenTuongHB Жыл бұрын

Thanks for kilometer.

@moonliteX Жыл бұрын

why?

@mrjimjimjimmyjim9824 Жыл бұрын

the moon is technically a planet

@EvanLovesFoxes Жыл бұрын

2016 is when I was born

@setoman1 Жыл бұрын

How many earths does the moon have? 🥳

@reginajohnson188 11 ай бұрын

The earth 🌎 used to have 2 moon's a long time ago

@LeFlshe Жыл бұрын

one*

@LearningCurveScience Жыл бұрын

Shh... Spoilers

@thomaswade3072 Жыл бұрын

One. It has one. Everything else is dust balls or artificial and all are wildly too small to have their own appreciable gravity wells. Saved you some time.

@LearningCurveScience Жыл бұрын

Spoilers!!!

@eveningstarnm3107 Жыл бұрын

LaGrange points are natural garbage pits. If you put something there, don't even dream that it won't get dirty.

@chazcad7319 Жыл бұрын

@1959Berre Жыл бұрын

Why do you say "Muun" instead of "Moon"?

@LearningCurveScience Жыл бұрын

Probably equal parts being a Northerner and The Mighty Boosh

@richardaitkenhead Жыл бұрын

I enjoy, I hope lots of attractive people mak secs wiv joo.

@CrimsonKiwii Жыл бұрын

moooooooooooooooooooooooooooon

@THEARDUOUSMOTH Жыл бұрын

(Nope, my autistic Brain was messing with me LOL, sorry guys!) you pronounced Cruithne completely wrong you pronounce it like Cro - ith - ne i replaued the U with an O to make it easier to say

@herobrine8763og Жыл бұрын

11:31 So that's how we got COVID-19! /hj

@cleanerben9636 Жыл бұрын

and also; for this reason Earth isn't a planet. Checkmate IAU

@jessicamorgan3073 Жыл бұрын

I thought those Trojans were orbing the Sun, and not the Earth. Trojans can be found around Jupiter too.

@cleanerben9636 Жыл бұрын

@@jessicamorgan3073 which means Jupiter isn't a planet either! IAU BTFO'd eternally

@LearningCurveScience Жыл бұрын

You're quite right. Trojans like the other quasi satellites actually orbit the sun, but their orbit sometimes make them look like they are orbiting us. I believe we've found Trojans of Jupiter, Venus and Neptune (at least)

@alessandrorossi1294 Жыл бұрын

Stop with the “I hope I’m pronouncing that correctly”, gain some confidence bro

@Anonymous-md2qp Жыл бұрын

I think he is just pre-empting the abuse. If you’ve been on KZfaq long enough you will know how cruel humans can be behind a keyboard.

@silverfox9947 Жыл бұрын

Stop with the "picking on the negatives", gain some positivity bro.

@alessandrorossi1294 Жыл бұрын

@@Anonymous-md2qp well he shouldn’t listen to what random commenters have to say

@forest487 Жыл бұрын

Their being respectful

@LearningCurveScience Жыл бұрын

Thank you. I'm neither Polish nor Irish, my pronunciations are at best approximations. I know I mangle my own language, I try my best not to mangle other peoples.

@wbbartlett Жыл бұрын

One. ONE. FFS. Dust is not a moon - else my apartment has millions of moons. Objects that orbit the sun are not Earth moons as they don't orbit the fcking Earth.