Where did the Moon come from? A new theory | Sarah T. Stewart 

I thought the moon was an artificial body that is hollow and placed in orbit by aliens.

7:15 if you want to skip all the “Foreplay” :)

oh god this comment section is 50% people complaining about her ego, and 20% creationists and/or flat earthers, 20% that think its too "boring" and maaaaybe 10% interested in the science. pretty sad honestly.

Something in me is saying that what she is saying is 83.7% wrong

The real challenge was how to fill a 10 minute TED talk with 1 minute of info. Smh

I wonder what the flat mooners have to say about this...

She admitted that this was a product of her own imagination. That’s not science.

the moon is a death star that was built but never used

7:15 for the new theory

By the time the buildup (filler) was done I had lost interest. She then did not have enough time to explain her hypothesis so I do not have a good understanding of her point. Points need to be presented early and then explained, not the other way around. Sorry.

I'm amazed that at this woman's "rather" young age, she's traveled to and examined EVERY other planet and moon in the universe. Outstanding!

Incredible speech, I always enjoy when science and imagination form new ideas. Bravo!

Lesson : when you don't know the answer, make something up. Give it a name. Do a TED Talk

She starts talking about the students and people and hours of work togueter for 2 years... and then... I DISCOVERED.... jajajajajajaja What happend to all the people working with you?

This double whack theory is twice as whack as the single whack theory.

Have scientists ever come up with a theory that *doesn't* include some kind of a giant impact to explain the planets?

Just because these talks have TED before them doesn't make them right or intellectually superior to your ideas.

So it wasn't formed from a giant impact, it was instead formed from a giant impact. Ahh I see.

12 mins Wasted sayin bugger all ... I actually feel less intelligent for watching this

I just heard a lecture on the idea that the earth and moon do not have the same material.

Fascinating. It's rare that I find myself thinking of the universe in a completely new light.

She's brilliant! Filling a 10 min slot with 10 sec of interesting stuff.

The filler does not bother me. I enjoy the buildup if the payoff comes through in the end. This talk came up short for me.

She needed to come up with a theory to keep the grants coming.

Id rather have questions that cant be answered than take answers that cant be questioned. Richard freynman

This was just sad. I had to listen to I. . .I . . . I. . ..I and how amazing she is for discovering something that was already discovered. She must be horrible to have to work with.

That's by far the best explanation of how it was formed that ticks all the boxes.

SYNESTIA. Yes , I was taking that for my sciatica, but I forgot to read the side-effects disclaimer and now suffer from dyslexia.

a lot of this was filler, but the theory is interesting.

This is 85% generic filler. I'd expect this on a CW show not a Ted talk

I'm sorry if I'm mistaken If the moon was formed inside the (gas) Earth Wouldn't the moon be the center mass and attract all the gases onto itself and become a single planet?

The moon being 400 times smaller than the sun, but 400 times closer than the sun is a little TOOOOOOO coincidental.

Shouldn't this be a new hypothesis instead of a new theory?

Wait till she finds out that the moon was placed there by ET's

The way I innerstand it is that the moon is a reflaction of a bigger body, explaining why we can sometimes see the moon during the day but not the sun during the night. and additionally why we can never see the backside of the moon. a YT-er (godgevlamste) seems to have found a "crater" on the moon (Sulpicius Gallus M) which mirrors the earth's continents. Earth is a beautiful and unique melting pot of species and cultures. Happy Studying.

It’s awesome that somebody actually makes a living doing this...and speak about it front of many people...and not realizing that it’s just a theory nothing more

Start at 7:17, you won't miss anything. Watch 9:40-10:30 for summary presentation.

Nah. I still think it being an extraterrestrial vehicle compensates for all the anomalies like its unnatural size to ours. Coincidental spin with ours to always be facing us. And Coincidental size being the same as the sun's size as seen from Earth to make perfect eclipses. It's hollow nature and much more.

Who Built the Moon - Alan Butler

I'll take 'How to turn a 45 second talking point into an 11 minute Ted Talk' for $1000.

I was going to type something negative, but I see many have already... Thanks people 🙋‍♂️

The moon is a plasma light phenomenon created by God. Genesis 1:14 “And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:” King James Version (KJV) King James Bible And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: he made the stars also.

1.5x speed made this so mush easier to listen to.

This is not a theory. This is filler followed by a hypothesis.

Lots of critics, cynics and doubters in the comments below. This geologist likes the explanation. No, there is nothing certain about it but such is the nature of planetary science... Not knowing for certain is no reason not to offer a possible explanation. Definite thumbs up from me.

Ideas NOT worth spreading

This should have been uploaded on April 1st.

You didn't discover anything. With conjecture and pseudoscience you created another theory to be replaced later. Good imagination as you said.

"What is hidden from my view by my own assumptions?" Yup.....

the earth and the moon is not made form the same materials ...... who is that woman??? omg,...

It's no moon ... it's a space station.

10 years ago, or more, I read about the main flaw inherent in the 'giant impact' theory i.e the identical isotopes in the Moon and Earth. Back then, I guessed that the giant impact theory must be wrong because how could they explain the similar makeup in both bodies and the lack of evidence for the impactor being present in either the Earth or Moon? I am so grateful for Ms. Stewart's work and this video. Thank you!

This feels like clickbait. When you're eight minutes in, and you still don't know how to attract women better. Or don't know anything new about the Moon. ¯\_(ツ)_/¯

Speechless thank you

Cleveland. I think the moon came from Cleveland.

So the moon formed from the heaviest elements contained within the cloud yet it is now less dense than the earth and less dense than any credible explanation has put forth? Isn't this a major sticking point for the gravity impact model and why you were doing the research in the first place??

I had to turn on the ol subtitles for this one. 😯😯

What if we hadn't gone lunar and had to fake it with earth (rock)isotopes. Its got to be manufactured by ancient dwellers. Brilliantly portraid

Every version of the giant impact theory that I've heard explains the identical components of both bodies by stating that much of the Earth's crust and mantle were knocked into orbit around the Earth, with the iron core of Theia meeting with our own... Which also explains Earth's magnetic field strength.... It's fine to explore, but Occam's Razor applies to science, not emotional need to reclassify a "beloved body".

She’s right! Our moon is special and this is all very interesting , but I’ve been waiting for an explanation or hypothesis about the dead orbit of our planetary sister. We always see the same face. I guess all the other planetary siblings aren’t special. Even basketballs spin when they’re thrown.

I see a large disc shaped plasma xray map of the old earth...not twins, an exact mirror image held in the sky in a moment in time!

This theory is the best I’ve heard. Planetary bodies have gone through many changes in the billions of years since their formations. Apart from all the conspiracy theories this seems like a possible scenario. Remember the moon has and still is today been instrumental in influencing tides and animal behavior on our planet.

Sinastia sounds beautiful, but it is hard to swallow. Nobody knows how the Moon is up there, why it is so different from the other moons in the system, why it did resonate like a bell, why it is hollow, and why there are a bunch of isotopes which are not akin to ours

IM STILL LOST, WHY DIDN'T SHE CREATE A SIMULATED VIDEO FROM IMPACT TO FORMATION OF THE MOON......

Very interesting theory! The arguments speak for it. But what has not yet been explained clearly is how the moon is supposed to have formed from the earth? That would mean that there is another moon in our earth. However, the moon does not have a magnetic field like the earth. How much gravity has to be created to activate the magnetic field? Another reason why I like your theory but find it more interesting as an idea for possible other planet formations is that the existing moon is much lighter. It doesn't rotate and as mentioned before it is as light as a balloon in relation to the mass of the earth. I have another theory and after researching it I discovered that my idea is not new. I asked myself in advance all the questions that the moon has in relation to the earth and the moons of other planets. Something like a general theory created. And then compared Earth's moon to it. The result is that the moon is always inclined towards us with the same side, it does not rotate, the impact craters are all the same depth or no deeper, the moon is too light for its size in relation to earth and the materials are different from the materials of the earth. That is, should the moon have formed from the earth or how the current accepted theory, the collision of a gigantic comet, arose. This in turn would mean that the same materials would have to be found here on earth and on the moon. But that's not the case. In all cultures of the world there is talk of a flood of meaning that has reshaped the whole world. The current scientific theory is that a volcanic eruption in the Mediterranean region is said to have triggered this flood. But why do people from Pacific Oceania or India or North America or or or... report about this catastrophe all over the world. A volcanic eruption is definitely possible, but the eruption would have to happen in several places at the same time. But there is hardly any mention of fire in the reports of the peoples. What Causes Huge Floods? The moon! The moon was thrown into its orbit, thereby reshaping all of the world's seas. So what is the moon? `The moon might be an easier station of ET's after all. Because a real moon would be 100 times heavier in relation to the ratio (the size)!!! Why isn't he spinning? What's on the other side of the moon? We have such good cameras in the world, but we only ever know an exact lunar surface in processed or blurred form. My theory is not new, surprisingly this theory has been around for much longer. The importance of Proselenes is also mentioned. The time before the moon. So what is the moon really?

She said a planet gets its shape from its strength of gravity as it spins... how did the moon become round? It doesnt spin. Its in a geo static orbit.

Amazingly, this presentation has more fluff and filler than an undergrad essay. I stopped at 7:00 and she still hadn't said anything.

Interesting, and great find! I instantly thought of how one cell turns into two cells when she described of one big collision created two objects.

Yes. I have read and seen - Who Built The Moon ?

Artificial objects

She says, "We only realized that by finding them in our imagination." It was imagination that has come up with all the other ideas of how the earth and moon was formed in the first place. ROFL

I would like a research grant and to spend two years theorizing and throwing away ideas as to why I spilled my coffee this morning.

She admits that the goal of the whole project is to “rescue” the impact theory. So of course that’s what they did.

Santa Claus wants to know who has been good this year.

They are twins because they never went. The moon rocks were just earth rocks

If the earth had water, then it had an impact from some other object, and everything was vaporized, how did the earth get its water back?

The Moon is a Hollow object place around around our planet.

The earth and moon are NOT made of the same elements. The moon is dated at 5.3 billion years, making it older than the earth.

its not 'theory' if there is only one example of it (as it is stated at the beginning). its hypothesis.

What is hidden from my view by my own assumptions,,,,so so true

I respectfully disagree with her presentation. I'm a physicist and I would say ( to summarize) The Moon is a complete anomaly and should not be there at least not the way it is Vis -a-Vis earth, It's like someone or something put it up there in purpose.

...but wasn't there supposedly a time in human history where there was No Moon??? hasn't this been documented??

How is this different from just saying it formed from the original proto-planetary disk? That same animation she shows at the end is what they used to show for the moon formation before the giant impactor theory took hold.

The giant-impact hypothesis the Moon formed out of the debris left over from a collision between Earth and an astronomical body the size of Mars, approximately 4.5 billion years ago, in the Hadean eon

Why does she speak as if she repeats what she hears in the earpiece? Nevertheless interesting theory...

How does she know that none of the other bodies have the same genetic relationship as the Earth & Moon....?

This is not really a new theory but the Modification of the Impact Theory.

This was a big box, filled with ten gallons of packing peanuts, all used to ship a 30 count bottle of baby aspirin. Fluff fluff fluff fluff...

She probably thinks we live on a spinning ball in space too...

Ancients speak of a time before the moon

...it's very disconcerting how she speaks in absolutes, when everything she says is actually; theory, conjecture, wild guessing, sprinkled with lies. Sad. Frightening.

I cannot shake the feeling that the idea of earth as a mother giving birth to the moon is more a psychological thing of t he scientist than fundation found by science

Did she say the earth became flat and took a siesta? The arrogance of scientists not to listen to all of the ancient cultures that describe the moon being rolled into place. This event happened during human existence, not before. Where's your scientific model for that?

Sumerian documentation states that the earth started out as a larger planet called Tiamat that was in orbit where the asteroid belt is now, and was struck by an even larger planet. From this collision the earth was knocked into its present orbit with core material blobbing out and forming the moon. This left a bunch of debris in the prior orbit, "the hammered bracelet", or asteroid belt. This "myth" dates to 6000 BC from a people who had no spacecraft or telescopes. Interesting.

I hope you can explain why the moon is hollow and only rotates to the face of the Earth. One rotation. Impossible. Name any other planet that does that!

Play at 1.5 speed. You're welcome.

No you cannot duplicate the conditions that created planets. Lol. And nothing was discovered here. She doesn't even have a real example.

She says no two planets have the same isotopic composition. How many planets have had their isotopic composition sampled? 3? Earth, Mars, moon?

The real world? You have no idea lady

So the interesting thing is, this could theoretically be quite a common phenomenon in the universe, which means our Earth-Moon situation may not be as rare as some people think it is, and if a moon the size and situation of ours is an aspect of developing advanced life on an Earth-sized planet, this means there could be more planets in the galaxy that do have a moon similar to ours.