Plot Twist: The Dinosaur-Killing Asteroid Didn't Come Alone
HTML-код
- Опубликовано: 17 сен 2022
- About 66 million years ago, a 10-km-wide object from space hit the Earth and initiated the fifth mass extinction event. From causing wildfires that raged across the continents to triggering tsunamis, the impact wiped out nearly 75% of life on the planet and specifically led to the extinction of non-avian dinosaurs. In addition, the impactor left behind a vast, 180-km-wide crater known as the Chicxulub crater underneath the Yucatán Peninsula in today's Mexico.
So far, scientists have believed that there was a single massive chunk of rock that triggered the extinction event. But now, in a ground-breaking discovery, they have found evidence that the Chicxulub impactor didn't come alone. Instead, it had a companion whose impact created the newly discovered Nadir Crater.
So how did scientists discover this crater? How do they know its impactor contributed to the extinction of the dinosaurs? Finally, and most importantly, how many more such craters from that period lay undiscovered?
The 25th episode of the Sunday Discovery Series answers all these questions in detail.
All Episodes Of The Series: bit.ly/369kG4p
Basics of Astrophysics series: bit.ly/3xII54M
REFERENCES:
Research Paper: bit.ly/3SazYsu
Chicxulub Crater: bit.ly/3QTxIEG
The five extinction events: bit.ly/3BNSykB
Boltysh Crater: bit.ly/3dnmvi8
Created By: Rishabh Nakra and Simran Buttar
Narrated By: Jeffrey Smith
The Secrets of the Universe on the internet:
Website: bit.ly/sou_website
Facebook: bit.ly/sou_fb
Instagram: bit.ly/sou_ig
Twitter: bit.ly/sou_twitter 
Наука
Why dont any of these videos ever show the true geography of the Earth during the ages of dinosaurs and meteor impacts. Continental drift is very important when imagining these events and allows people to understand better the destructive implications when when these events happen. If these meteors did impact approximately at the same time they were very close together instead of having the Atlantic ocean between impact areas. 66 million years ago S. America and Africa were very very close to each other
You should write a program to that effect.
Your opinion is just as possible as theirs.
@@halweilbrenner9926 What part of continental drift is an opinion sir.
Um, cause there was no humans making maps and stuff of creators back then....
Because videos are made for money, not your ideas
So glad these videos don't rehash history for the first 8 minutes of the video and then only get to the new information in the last 2 minutes like so many other channels that I refuse to watch. Keep up the good work
Oh God, I know exactly what you mean. SOOOOOO annoying.
Rule #2: Always double tap.
When I was in high school ( 1974 ) this subject was brought up in class ...at that time only one Crater was known , are thoughts were that more than one asteroid hit the earth but we're unknown because they landed in the ocean and over the years became hidden by nature...Our technology of today has opened our eyes to see so much more since then ...I'm so glad my earth science class was proven correct I hope my instructor Mr. Welch is still with us to see his , I'm Shure he is smiling no matter where he is : )
HUH?? The Chixulub crater was discovered in the Late Seventies/Early Eighties.
Quick note for future reference: "Shure" is a brand of microphone. "sure" is what you meant, I'm sure.
Also, "we're" is the contraction of "we are", not what you meant. "were" [sounds like "wurr"] is pretty clearly what you meant in that second line. Don't trust talk-to-text without a quick proof-read before hitting COMMENT. 😅😆😄
@@wilderhaven "He's the Consigleo..the Consigno..." "Consiglieri."
SMACK! "WHAT did I tell you about correcting ME in Public?!? You want a FRESH ONE??"
meanwhile your English teacher is spinning in their grave. (probably)
Educational system must have been shit in the 70s. Especially English class.
Yes I saw another astronomer who said there is now a third large impact crater that also hit around the same time. So yeah there you go. The dinosaurs saw it coming and attempted to blow it up but only causes it to split into multiple smaller, but still large meteors that wiped them out. The last part is a joke, but still
Chech the JASA animation video! 🤣🤣🤣
"CG shotlry film on the extinction of Dinosaurs | Dinosaurs the true story..." from Kiss Kiss channel"
I'd watch this movie
Damn it's a joke?🤔
Here I was thinking that dinosaurs had Their own NASA, Bruce Willis, and it's where the movie Armageddon got their idea from. 🤦🏼♂️🤣😂
The sad part is that there are actually people who would've needed you to spell out your joke. Because they would've thought you were serious.
The second "meteor" is actually an exit hole of the same meteor.
When I worked for a big oil company one of the company researchers gave an internal lecture on buried impact craters as possible trap for oil and described how one would appear in the geophysics. He called them astroblemes. My odd sense of humour wondered, not out loud, if astroblemes could be treated with clearasoil.
Probably better off with Preperation H.
Preparation "A"....
gosh, and you didn't say it out loud;but saved it for us👌 still funny👍☑️
How far down under the basin would that oil be?
Hahahaha!
(I wrote my first comment before I got to the funny!) Yes, should have said it out loud (well, maybe better to not risk the job) -- thanks for sharing it here!😁👍
66 mil years already? i was thought it was 65, man how time flies.
Ikr? When I was a kid it was 65 million years ago.
Funny how rounding up works, isn't it ....
@@clausbohm9807 Funny was my intent.
What are you talking about is puzzling at best. Do tell more, please.
@@clausbohm9807 well I've never heard 65.8 million years ago or something. Lol.
@@micixduda 65,499,936 + 65 years Its 65M until you add 65 years then it rounds up to 66M, ha ha ha! Just playing around with numbers.
I was reading a writeup by a professor in boulder Colorado, he had found that there were multiple impact points along the rocky mountains dating back to the very same impact. his theory is that the meteor broke up into many different sections and peppered the North American craton cracking it in half allowing for the full formation of the rocky mountains we see today.
Might have made a big crater but that would be a minor blip in the history of a craton. Also, mountains form when the tectonic plates are squeezed together, not by asteroid impact.
@@WATsunami That's normal but the Rockies aren't where two plates collided.
@@ferengiprofiteer9145 The Rockies may have formed over the fractionally melting remains of the Farallon Plate. The actual location where the Farallon hit North America was west (today's "west") of the Rockies, but the Rockies are still the product of plate collision.
NOTE: There were dozens, if not hundreds, of mass extinction events. The 5 biggest are most often discussed, but there were numerous others. Virtually every few million years or so. Change is ALWAYS a constant!
Groundbreaking is a very good choice of word.
Put twist: the water feature at 6:26 is in Oregon, USA. It's known as "Little Crater Lake" and has nothing to do with impacts (nor does the full size Crater Lake, also in Oregon).
It also could have hit the Earth 1,000 years, or 50,000 years after the larger impact.
I don't know what paleontologists you've consulted with but I know since 90's that there is an about 100-kilometer wide buried crater in the centre of Ukraine. It is also 65 milloin years old and its epicenter is in Svetlovodsk city, Kirovograd region, and it makes Svetlovodsk rare metals deposit.
Nice to hear other theories about extinction event
Chance of a triple threat? Shiva crater near India is another massive undersea crater, also dating to 66 million years ago, that's even larger than Nadir or Chixulub ☄
Thank-You! Wow I did not know this.🤓👍🏽
Vredefort dome in south Africa is another one. Why is it data seems limited to america lately
@@jeanninerossouw5921 Yeah, but Vredefort is two billion years old.
If it turns out those craters all do date to precisely the same time (and aren't a million years off like might also be the case), it suggests Earth effectively got shotgunned from space 66mya 🤣
@@zackakai5173 Well, I had a proposal for my bachleor thesis linking the deacon basalt traps, the columbian basin impactor and Chixulub. The Univ. of Rodchester NY released a paper back in the late 90's talking about finding shocked quartz directly below the Traps, in a ring about 180km in diameter. India was in the middle of the indian ocean at the time and plotting it out, india impactor, Nadir, Columbia, and Chixulub, you could trace a line from just south of the equator, across the globe in a line to Chixulub, from southeast to northwest. There was a lot more evidence I had gathered, but I was going for geophysics and exogeology and got booted for humiliating an instructor in front of the class for not keeping current with published geology thesises.
I would be surprised if a rock big enough to destroy all life on earth didn't break up when it hit the atmosphere, or when the Earth's gravity caught it. Kind of like the shoemaker-levy 9 comet when it got caught by Jupiter.
What hit Jupiter was a cosmic snowball
A ten kilometre rock is a mountain moving at 60,000 mph
There is little comparison
To be fair, comets are fragile compared to solid rock. . .
@@naradaian Even a snowball that size wouldn't have any time or distance to make separate craters in the few seconds between atmosphere contact and ground impact.
I can't help but think of my own country, Australia as a gigantic crater. When you look at the topography of the continent we see curved mountain ranges running up and down the east and west coast. Pretty much everything between those mountain ranges is flat, with a giant rock (Uluru) in the middle. I wonder why no one else sees this
Because Uluru is a type of sedimentary rock called arkrose. It's been tested, it's from this earth. It was widely believed to be a meteorite, but has since debunked a while ago.
Because people that have been there know its not like that.
U ever been to or seen Wolf Creek ? Its a real crater that had a huge impact in Australia...most people are not smart enough to comprehend that all earths land masses were all connected at one point...most are also not smart enough to comprehend just how old all this really is...to put in lamens terms if i and my kids live to 100 call that a lifetime in just 10lifetimes 1000years has gone by with just 10people....its proven history of people have been living in Australia for more than 50 000 years people just cannot fathom that time in there heads....many like myself do see what u are saying there is just so much more to it
Non en Australie c'est le mouvement des plaques tectoniques qui a façonné le paysage pour le reste, c'est l'homme avec l'introduction des lapins. Es tu sûr d'être Australien et pas plutôt Marsien?
Because you can see ANYTHING in a Rorschach ink blot. Just because something is roughly circular does NOT make it either an impact site or a volcanic crater. The most obvious examples on Earth are the Bay of Mexico and Hudson Bay: neither were formed either by impact or eruption. They just accidentally formed that way; it happens.
Where's a mention of the Deccan Traps flood basalt event, caused by the Chicxulub impact? It's covered by the Dean of UW Seattle in another RUclips video.
I’d bet the impact awakened a lot of volcanism
look up shiva crater.
The Deccan Trapps have been proven to have started around 500,000 years before the impacts but there is some indication that the impacts caused a pulse in the eruptions
@@timberry1135 Agree. It would seem the Dinos were in trouble even before the meteors
Possibility of many other undiscovered impact craters on earth.
Craters may not always be visible overtly if asteroid disintegrates after entering atmosphere.
Reminiscent of the Tunguska event.
3 interesting facts about birds and at least some dinosaurs. 1. Birds and dinosaurs had lighter stronger bones enabling easier flight in birds and giant sizes in dinosaurs like the saurapods. 2. Birds and dinosaurs had more efficient lungs enabling easier flight in birds and huge size in some dinosaurs. 3. Birds and perhaps at least some dinosaurs have smaller more efficient nureons enabling toddler level intelligence and self awareness in some birds and perhaps at least some dinosaurs had intelligence. What may have been the difference and why mammals eventually inherited the Earth is that dinosaurs and birds lay eggs which small hungry mouse like mammals post impact apocalypse may have fed on preventing an eventual repopulation. Mammals having live births was probably more successful in producing offspring that survived. Even nowadays in some islands the appearance of rats from arriving boats decimate ground roosting bird populations through egg eating.
This guy was a no-show this morning and they called me into work @ 5:30 am....I will call you when I get a chance
Read my comment
Nice story. You are wrong..
I always had the theory that a cooling climate post impact did the most to kill off the dinosaurs. The Earth at the end of the Cretaceous was very warm, with virtually no ice and subtropical forests stretching up to the northern US. The old view was that the dust from the asteroid blocked out the sun, which killed plants, but I don't think that would do as much damage as we think. I think the dust high up in the atmosphere blocked out radiation from the sun, which caused a global cooling the likes of which we haven't seen since, at least not until the Last Glacial Maximum. The cooling climate not only killed off the tropical plants which dominated the Cretaceous ecosphere, but caused mega-droughts which further killed off most plants. The large herbivores died out, while the smaller avian dinosaurs and mammals survived because they required less food. The ensuing cold climate would have reduced the range of egg laying dinosaurs, which needed more heat to insulate eggs.
@@therealdarklizzy I think that the Tibetan plateau prevented either a snowball Earth or a far colder ice age in the past million years. The Tibetan plateau prevented warmer moist air from the Indian Ocean reaching Central Asia where it would fall as snow reflecting more sunlight. This was at a time when much of North America and Europe was covered in ice sheets yet Central Asia and Siberia was seemingly largely ice free at least in summer.
"Sir, there's been a second asteroid"
Life is so unique and precious, as to make us a little sad, thinking of what the massive dinosaurs suffered sixty five million years ago. On the scale of geological earth time, the event happened just yesterday.
How thought provoking
Very true, but it's also important to remember that their demise allowed mammalian life to become dominant, leading eventually to us.
@@santoven
Yes, yes... absolutely, life and death compliment one another.
The earth is 4.6 billion years old, that devides into 70 sets of 65 million years. So if you scale that ratio to a human life, it was like it happened last year on a geologic scale.
@@jellef4704
Thanks for the correction. You must admit though, for a guess... I wasn't that far off.
If there are 2 asteroid hits, there probably were a dozen or more smaller hits. A shower of rocks of course.
A shotgun blast. Or the earth itself flying through a debris field. Like it goes through the taured meteor stream twice a year and is impacted by thousands of small objects.
ur stock footage is on point my man - keen to see u do the tolkien trilogy with only stock footage
The Position of Chicxulub and Nadir would be co-linear for a Summer time Earth tilt. Chicxulub was 2 degrees north of the Equator at the time of Impact around 66 million years ago. It is now around 20 degrees north of the Equator. The Deccan Traps was around 2 degrees south of the equator 66 Ma. It is now around 17 degrees north of the Equator. The Deccan Traps was antipodal to Chicxulub so the energy of the impact reflected and refracted inside the Earth and fractured India so it started leaking magma. It leaked enough magma to cover the earth three feet deep in black lava. This gives you an idea of the enormous amount of energy contained in a large impact event.
It has been suggested that the Pacific Basin with the "Ring of Fire" is where the Moon had bounched off Earth and then captured into orbit. This also explains why there is so much Titanium in the Siberian region as cast-off debris. It has also been suggested that Hudson Bay with its circular Eastern shore is an impact point and perhaps the largest strike location.
He said "ground breaking" discovery. Was that an intentional pun?
Haha
We know from modern observation that meteors do indeed fragment. I’m so impressed by the research approach of your video. Breathless enthusiasm is such a turnoff to learning. Thanks for this,
Thank you for the video.
So we're all waiting for the next extinction impact. Well, doesn't that just make our day.
Do you think we'd be warned? I suspect that an extinction type of threat would drive everyone insane. No consequences for anything. It's all over so why not?
Absolutely no warning. And nothing we can do would help because infighting and politicizing, and the penny pinchers, the entertainment value for those assholes.
Stuck in the mud. And we all die at once.
@@darrellcook8253 1/2 of the world would become super religious and the other half would go crazy.
What's out there NOW is what's scary, the past is over.
I don't think humans worry about that stuff too much because we don't think it will happen in our lifetime but who knows, when you think about it, we are sitting ducks, I hope we see it coming and I hope they tell us about it, either way not much we can do unless we pull some armageddon type stuff 🤣🤣🤣
Indeed.
@@infinity3jif It would be irresponsible for anyone to disclose an impending doomsday event. There would total chaos on Earth prior to this event. Why go to work, why get a home loan, why bother with an education.
Honestly these videos deserve way more likes
Because we don't have complete and precise geological 3D map of the sea bottom. I think they started last or this year the process of making it via multi-beam sonar. It'll take time. But if they do it(properly)the results will be awesome.
Yeah heard about a third myself from that era. Also, our Solar System was moving through a Spiral Arm at that time. Indicating higher chances of impacts when we pass through a more dense area of our Milky Way.
Oh yeah now I remember
The singular asteroid theory never made sense to me, given the nature of asteroid fields. To me, that'd be like going to a beach and only getting one grain of sand in your stuff... possible, but highly unlikely. Thanks for your informative video.
Possibility of many other undiscovered impact craters on earth.
Craters may not always be visible overtly if asteroid disintegrates after entering atmosphere.
Reminiscent of the Tunguska event.
This guy is correct. I've done multiple demonstrations and models proving that a single 10km asteroid hitting the ocean could not do this. It would take a second asteroid roughly 23km in diameter to make the crater we see today. Mind you most scientists would never admit to being wrong. Do the math yourself. A 10km asteroid traveling roughly 17k Kmph at such high heat would have been partially vaporized upon impact of the water. Not to mention having to go 100km into that water before impact to earth. So my models and demonstrations show that with roughly 12 to 24 hrs of the first impact came a second impact of roughly 1.6 greater size than the first. If you take into account where the crater center and size with included continental drift the calculation comes withing 50km of the known center of the crater. With a second impact happening while the sunami is spreading outward this also accounts for such a large ashcloud and the tectonic shift. Less or equal to the distance of total depth of water vs the asteroid. Which in turns activates violent volcanic activity around the globe. This accounts for much of the ashcloud and depth that's been found around the globe. This blocked out most of the sunlight for nearly 2.5 million years and caused the great extention. Did it destroy the planet. No. We're here. Life found a way. Could it happen again. Absolutely. Look at how many asteroids have hit the earth since man has been mapping the stars. We just like to think that we're that good. Truth bomb. We're not. We're still at the mercy of the nature and the stars. So. Stay true to your faith and your family. And remember. Keep an eye on the sky like Dr sky. You just never know.
While the dramatic scenario of a catastrophic asteroid smashing into the Earth, makes good movies and videos, some scientists now doubt that the "Cretaceous Extinction" was caused by an asteroid impact. There is now evidence for a huge increase in Earth's volcanic activity. That changed the benign climate of the Cretaceous to one more variable and harsher, drier and more "seasonal".
First time hearing the multi-impact theory, and question of just how many there may have been.
There are possibly two others. One across Europe and another that may have formed the Hudson bay.
You would be glad to learn Earth has been hit by multiple multi-impact meteors/comets countless times over the past. Because Earth surface is constantly remade, the proofs we have are mostly on the Moon, and there are plenty, telling us the Chixulub impact is among the tiniest we can still see on Earth, there were multi-impacts way larger than that, hopefully, most of them happenned before the start of life on the planet.
For your question, with Chicxulub... we don't know yet, this second crater is a possibility that needs confirmation. Because we wasn't there with our telescopes, we will never know how many bodies if this is a multi-impact. We could only know about the bodies larger than 30m if we find the said craters (still there or got melted under the crust ?). How could we count the rock that missed Earth despite being hypothetically with the same group as Chicxulub ? How could we count the dust that came with the larger bodies, vaporized in the atmosphere upon entry ? How could we count the rocs that impacted Earth elswhere, but not massive enough to make a crater that would last 65 millions years ? How could we count the 1km wide meteors that landed in the same location as Chicxulub, but melted along the others due to the big one ? We weren't there :(
Several ? maybe. If so, how many ? Yes !
You said it Best. Theory. Not FACT! Man thinks he is Smarter than the Lord.
@@markwilliams5606 So then we should infer the Lord is punking us by leaving a whole bunch of evidence that is wrong? Not really a good look when you think about it
@Mark Williams, Man thinks he is smarter than a rock. Hardly...
Another excellent presentation! Thank you. I can scarcely think of a way you could improve upon this format.
The end result is superb. I would go so far as to say superior to other science channels, but that lacks tact. lol
Anyway we are thoroughly enjoying this Sunday series.
All the best to the crew!
Thank you for your superior intellect compared to us commoners. Yes. That’s meant for you. The video is super.
@@livenbelieve4819 Humility is the seat of wisdom. Why so easily triggered? Work on improving yourself, jealousy illl becomes one. Good luck with it.
I never knew this, but I found out that I was born and raised in a massive impact crater-kind of. A large meteor hit at the tip of Cape Charles on the Eastern Shore of Virginia. The edge of the crater was right underneath my house in Virginia Beach. It's all buried now with sediments.
Outstanding video as always! :)
There was another ancient meteor impact at Sudbury, Ontario Canada’s major source of nickel metal.
I saw a documentary about it. Amazing stuff.
Hudson's bay sure looks like a crater to me
Canada’s gift from space.
One of largest deposits (readily mined) of Nickel.
@@snapon666 Right now the thinking is that is it is not. They drilled the area years ago and did not find any evidence of an impact.
Possibility of many other undiscovered impact craters on earth.
Craters may not always be visible overtly if asteroid disintegrates after entering atmosphere.
Reminiscent of the Tunguska event.
Wow! I was completely unaware of the existence of this crater. So there were at least two impactors. Thank you for posting this new bit of knowledge.
There is another possible crater which will be largest of all near India called "Shiva Crater". Research is still going on...
Don't assume, wait the final studies before making conclusions :
This second crater *_could_* be related to the first, but it's unconfirmed as of yet. That's a possibility, making the _third_ crater in India aslo a possibility, as well as many others. The hypothesis is very seducing.
Truth is, *we don't know yet.* Maybe, maybe not, noone is making false claims, but noone detains truth either.
Look at the drake passage there is a 500 mile wide crater there
@@seanharris6359 Where because maps don't show one.
I found about it a year ago on RUclips, day the dinosaurs died second asteroid impact.
*_That location (Nadir) was considerably closer to the Yucatan crater 66 million years ago, because the continents have been moving apart for nearly 200 million years!
The trouble with this and other (newer) discovered impact sites, is that it happened so long ago that a =/- 10,000 year span is smaller than a 0.001% error!
Was Earth's atmosphere thicker at this time. I think it may have been at least a few % and perhaps more thicker. This would have caused warmer temperatures and also explains why the pterosaurs were able to fly despite their size. I imagine they flew near the tropical coasts where the winds would be strong because there was do much land in mostly one place.
pterosaurs could fly just fine now if they had the bone density they appear to have had. there really isn't any paradox there.
@@sumdumbmick big birds. They could fly but how well?
I think pterosaurs had air sacks in their bones which made them lighter.
@@sumdumbmickQuetzalcoatlus weighed 500Kg, and couldn't possible generate enough muscle power to enable flying. If Quetzalcoatlus only weighed 90 or 100 Kg then you need to have some sort of reasonable explanation of how a 12m wingspan animal had such a ridiculously body density. I mean really, was it filled with hydrogen gas bags or something?
The strength and density of animal bone explains why animals don't get much larger than African elephants. Paraceratherium is as big as an animal could get. Yet dino's dwarfed it. Also if birds are the descendants of dino's then they should have inherited this mysterious low density bone muscle of the Pterosaurs. Todays birds do not in fact have densities 1/5th of what is normal animal tissue.
Pterosaurs were not dinosaurs, they were reptiles.
If an object with more mass struck the Earth it may well have punched straight through the crust leaving an open wound oozing lava for a long time and eventually largely self healing the crater and obscuring the evidence of the impact. Perhaps this explains the Siberian and Indian traps.
I've been wondering about this for a long time. It would account for why there is so much more iridium-group metals found in northern Russia
No. Those were flood basalts. Volcanic events. Please steer away from the Dunning-Kruger effect.
It's worth thinking about, maybe even visualize it. Doesn't have to be too big if it has enough velocity. Wonder how many volcanoes were affected. Did the volcanoes pop or go to sleep? Maybe even move tectonic plates around or fracture big ones. Maybe even make new ones. Our crust is relatively thin and puncturable.
Interesting hypothesis and quite credible in geologic terms.
@@marktwain368 yes. I think the largest known crater is Vredefort crater in South Africa but there may be larger eventually self healing craters.
I find it amazing that they can tell of something that happened and the size of an object that hit the earth 65 million years ago, yet they can't even explain how the pyramids, or Stonehenge were built.
Well they say they can explain those. Its just that some people don't believe the explanations.
One paradox about evolution is in my opinion fact that it does not always pick the fittest...sometimes it tends to pick the lil guy instead just cus s/he was incredibly lucky to be just the right size and on the right spot to survive through hard times
By definition, that is evolution. Your opinion doesn't matter to natural selection as it is not a guided force
Evidence indicates that no land life that weighed more than 10kg survived the Chicxulub impact (and most of those were either water animals or burrowing animals).
You just described the Fittest for the time. 😁
"Finally, and most importantly, how many more such craters from that period, lay undiscovered?"
I'm guessing we don't know... since they're undiscovered.
You are confused by that sentence? I'm shocked you even got one upvote
@@jonathonsmith6831 Obviously I'm not confused. Since I just explained what it means. You however, seem confused by even the words you speak. Your own mundane thoughts must leave you sweating and shaking, like the weak, insignificant, feeble minded thing you are.
Somewhere,I have heard there were 21 asteroids which hit the planet
Or more than 21 we never know
Look in the Vedas and other ancient writings such as the Epic of Gilgamesh.
probably from earth being in the comet trail of the main asteroid, causing tons of decent sized meteorites
One of the best ways to comprehend an impact is too visit meteor crater outside Flagstaff Az. Lived in flagstaff and went there 2-3 times a yr.
I find the fact that meteor crater was named after the nearest post office before it was recognised as an impact crater hilarious.
Well, whenever the hit, they did a bang up job of it.
Intrigued it’s relatively close to the Richat Structure, a tidal wave like that going onto the African continent could explain the eye of the Sahara looking like it’s been ripped towards the ocean ?
Probably way off but was the first thing that came to my mind
That Mauritanian anomaly has yet to be explained so you are not so far off some kind of mystery!
If you look at google earth in that area it looks like someone took a pressure washer to most of that part of west Africa
Another excellent video.
The Moon has several instances of crater chains (catenae).
In a small telescope, when Catena Abulfeda is near the terminator (6 day old Moon), it looks like a scratch on the Moon's surface.
I understand some geological features in coastal Texas also bear markings of this event , described by geologists as vast boulder layers across bedrock show the force at which wave actions created mass boulder sediments . I would also add another possible addition is the evasion evidence once the water recessed that living in this region that hills seem to resemble similar structures as sand develop as tides roll in then out , long veins of hills that roll up then down just hundreds of ft stretching miles . Topography maps may find these features have a link even that far in time . In Africa their are signs of these great flood events that are still unexplained , just being explored is fascinating Erie .
There are many theories, written by scientists, that the dinosaur-killer was not alone. One such offering says that the world was bombarded, by meteors of thousands of different sizes, for up to 3 million years! Now that's food for thought!
Pete,
I always suspected that millions more asteroids/meteor hit earth throughout its early history than just one that killed the dinosaurs.
Look at the surface of the moon for reference.
But here's a kicker that no one came up with except me:
All those millions upon millions of rocks that hit earth throughout its history added more mass to the earth.
More mass means stronger gravity.
Stronger gravity means land animals can no longer grow as big as dinosaurs.
I am surprised no scientists proposed such a hypothesis.
There might be presence of micro-tektites or cometary fragments found with dinosaur remains, but this has not been mentioned or suggested in the paleontological literature,
This story is slightly different then i read a few days ago.
It stated that there was a increase of volcanic activity at that time and when the impact happened it was too much. It still could be a double impact of course. Maybe these two theories are related. 😳🤔
Either way, clearly a bad time to be alive.
@@phillipgorey3711 i have to say that new articles of researchers is more frequent now and lots of things need to be updated. Even the big bang theory is now contradicted by the TW Telescope. It's mind-blowing all these findings.
@@phillipgorey3711 The Yucatan was under a shallow sea at the time with mainly limestones. The increased volcanics were from the Deccan Trapps large igneous province in India
@@phillipgorey3711 The Yucatan was, even at that time mainly composed of limestones and dolomites and was mainly covered in a sea as evidenced by the fact that the meteorite landed in water. The volcanics you are talking about in the crater are a commonly held misconception carried over from a drilling log describing Andesite from a lava dome. This was a miss interpretation (still commonly mentioned) and is actually melted rock from the impact itself
@@phillipgorey3711 Where did you get that information from. It is not described anything like that in any publication I have seen.
there are binary comets, its possible it had a beta and hit at the same time. If the orbits were fast enough, when they hit the atmosphere, they would've went in different directions.
It wasn’t a beta bro, he just all natty bro, get gear and he coulda messed earth up a new whole hole…. Lmao jk
If it were a caused by a speculative Solar Microburst it would explain the multiple masses riding the high energy particle wave.
That's not how it works : atmosphere is not thick enough to change the direction of any falling body of that magnitude from the sky, and no, not because they were spinning in opposite directions relative to Earth surface, one towards the east and the other the west, that has any meaningfull effect in the resulting distance between the craters.
If a duo of meteor or comet hit Earth at the same time, and the craters are 3000km apart, one logic reason is both bodies were already appart by at least 3000km before entering the atmosphere, like orbiting one another at a distance of 4500km. To have a two body objects reach incredible speed relative to the other and have the velocity to go different ways entering the atmosphere, you either need them to be very close, like a 10km orbit radius (which is not the scenario of your point : you will theorically see both bodies going in different directions, but the crater impact distance won't exceed the max orbit radius, ie a few kilometers) or having one body being utterly massive, like Earth's Moon.
A little more complex : Earth orbits the Sun at 30km per second. So, for a dual body coming in one after another, it takes 100 seconds for Earth to wander enough to get hit elsewhere, roughly 3000km away from the first impact. That means, for two meteor speeding at 30000km per hour to take one minute 40 sec between both impacts, they should be appart by 833.33km. This, to demonstrate despite having all body hitting Earth at the same angle and on the same path (orbit), it takes a few hundred kilometers between the meteors on a collision course to create craters thousand miles apart. This is not your two body system, but we will get there.
Even more complex, when a multiple body system approaches a large body, the large body disrupts the system and disorganise the orbits inside that system. Practically, each body of the smaller system progressively abandon the inital local orbits to enter one unique orbit around the massive body they are approaching. This results in *each body aligning one after another* (with some discrepancies). This ultimately negates the assumption of spinning duo before entering the atmosphere, it won't happen.
Now, imagine the system contained some orbits appart by 4500km. Nearing Earth, you have aligned rocks ~3500-4500 km apart. And 4000km is an impact interval of 480 seconds, 8 minutes during which the Earth could move (dodge) by 14400km, more than twice its radius. Chances are the second rock missed Earth (and will likely come back some astronomical time after, small or huge, like next decade, or 300 millions years later). One can point out Earth is not a flat plan or a cube, meaning 3000km linear on an azimuthal projection is somewhere between 3500 and 6000km actual Earth distances, roughly but you get the point : it takes even less than 833.33km of consecutive body hits to have craters more than 3000km apart, and depending on timing, the second meteor could land on the opposite hemisphere (19000km away), precess the first impact after nearly orbiting the entire planet before hitting (fly over some 32000km and land closer, like 8000km the opposite direction), or even miss entirely.
The whole point is, orbit and atmosphere has no meaningful influence on where the craters are (or aren't). What is relevant is the configuration and distance between the bodies, and the trajectory of the system (and not each body) relative to Earth. The penetration vector (angle) during the couple seconds they enter the atmosphere will be the same if they hit at the same time, maybe a difference of half a degree, but, roughly, they will be the same. If they hit at different times, like several minutes apart, yes, the angle will be different, not because of their initial orbits, but because Earth had time to move, bent the system trajectory, and present a different surface orientation relative to the penetration vector, making the visual angle of entry very different, at that location from the point of view of someone on ground zero.
Look up the impactor train from the Shoemaker Levy comet impact on Jupiter. That produced 21 visible fragments due to gravitational disruption that all hit Jupiter.
Gravitational disruption of comet or asteroid structures is common.
Shouldn't you call them or they since they don't have a gender 🤔 😅🤣😂
just a small perspective on the timeline involved.
65 million years ago, the Yellowstone hotspot would have been well off the west coast underwater, erupting every 1-3 million years.
It should be noted that study of the 12,000 year ago event would be more significantly more accurate in data points.
I was thinking the whole gulf was the crater. It’s too round in the Yucatán, meaning the meteor was broken down entering the atmosphere, possible a peace broken off the colossal meteor
The comet that struck Jupiter years ago was in several pieces. So, it could be possible earth had multiple impacts.
Yes, that is literally what the video stated...
Shoemaker - Levy 9
A fossil bed, that was once a river and river bank and sand bars, during the Cretaceous, found in the US has given up fossils and data, that means that paleontologist now know, that the dinosaurs died on a Spring day. Fossil fish in the fossil layer, were spawning, and unlike the dinosaurs, who could breed at any time, therefore, it is certain as to what time of the year it was, because they were fresh water fish, that spawn in the Spring.
Liked and subscribed🔔
There is no consensus if the Nadir Crater is a crater at all. It might be connected to underseas volcanic activity. It is located directly next to active seamounts driven by hydrothermal vents of volcanic origin.
Regarding the Chicxulub Crater, 66 million years ago the Yucatan Peninsula didn't exist yet. Half the crater was in open seas in present day Gulf of Mexico. The other half was in a shallow sea with thick layers of Limestone. The actual Yucatan Peninsula did not form until much later.
This channel never fails to amaze me. Always gives something worthy of informing. Surely fantastic ✨
And the way they do so is almost mesmerizing!
When looking at the thousands of small lakes scattered all over the Florida peninsula, one has to wonder if tiny moonlets from the Chicxulub impact caused them.
The Carolina bays are a result plus if you look at the moon you will see the same patterns as the Carolina bays
Nope
Sinkholes
Sink holes are a common natural phenomenon in Florida
"Florida" wasn't there when that happened. I can say THAT for a FACT
On the Sweden case, the third piece went to Finland. Lappajärvi crater. It’s likely the biggest of the three actually as its largest in Europe.
Fascinating!
There is another crater of this age in Iowa, USA. Would be interesting to see if they would have lined up at that time.
It would've been nice if they had put lines of latitude and longitude on the map to easily see if they lined-up with your Iowa crater.
They determined that it was too early to have cause the extinction.
they wouldn't line up, entering the atmosphere causes them to tumble in strange ways
If you draw a line through each crater and extend it outward i bet you'll find out if there were more pieces of a single asteroid that split apart
Bruce Willis and Ben Affleck didn't meet his target on time.
If you look at impact craters of the meteor that we're going really fast you can see the exit point personally the one that just kinda clipped us think of how fast a falling star shooting star streaks across the sky those are going like 70 k to 100k mph imagine the ones that are going 300 miles per second if they were pointed like that thing that visited our solar system with the Hawaiian name they could hit the planet go right through it in 2 or 3 seconds of the clipped it and not do that much damage well not like mainstream would say more like a bb hitting cantaloupe in a bottle of water without the bottle pulling water into the hole it make it would be like cauterizing the wound because the Earth's crust is very thin like a skin on soup after an hour
it's a lot more complex than this
Who else besides me has bought in to this wonderfully thought- out elaborate hoax please raise your hands? 🖐️
Or maybe it was a nova or micro nova. You know...from that bright shiny thing in the sky?
Or they were independent but equally devastating catastrophes such as the Younger Dryas event.
This second impactor (if it happened at all) was like a pebble compared to Chizilub . If it had struck on its own it would have had no global impact and the dinosaurs might still be with us. Saying this played apart is like finding the dead body of a man shot between the eyes with a 50 BMG and then saying, "I say, this chap took a BB to the knee. He might have made it but for the terrible bad luck of that BB strike."
Oh yeah, I remember when that happened just like you say
This new crater falls in line with another possible crater called the shiva crater and it's way bigger than the Chicxulub crater it's also said to have possibly triggered the deccan traps.
Deccan Traps is where liquid matter oozed out of Earth during The Flood.
Earth is filled with superhot water. Superhot water can dissolve everything.
The deccan traps started erupting before these impacts and may well have been the primary cause of the KT extintions although there is some indications that the impacts caused a pulse in the deccan trapp eruptions
Unfortunate that most impactor cartoons deceptively show objects up to the size of the moon and burning far out in space 1000X the depth of the atmosphere.
Very interesting. Theories move forward thinking and establish baseline ideas leading to comparing, predicting and eventually altering our perspectives thereby formulating new thinking. It’s all good.
I was wondering if the 2of them were 1 large asteroid and broke apart in the Earth atmosphere because they are so close to each other . That would make you think that they were once together.Thanks for your time
They hit way too far apart to have broken up in the atmosphere, considering how fast they were traveling.
So...the Universe double-tapped the Earth (unless we find more wounds).
It’s more than likely a comet. It could have been ripped apart circling the sun then had a few impacts.
I personally have my own little theory about that extinction event.
I suspect a shoemaker-levy like scenario did occur and the Chicxulub impact was just the largest of the impacts. That Nadir crater is likely another one and I personally suspect there would have been 1-2 impacts on the Cocos plate and a couple on the Pacific plate as well. The one(s) on the Cocos plate might have already subducted under Mexico by now, but there is a possibility of seeing if there is any such craters on the Pacific plate still.
Having said that, there is an interesting mostly circular structure with a large raised rim and a raised central area just off the Mexican coast at (20.260852, -106.001625) that peaks my interest. (though that could easily be volcanic in nature, given the plate boundaries nearby...)
So, if my hypothesis is right, there ought to be a crater to find somewhere between Chicxulub crater and Hawaii (large area to consider, I know...)
There is an interesting structure in that region of the pacific plate that has a near perfect circular structure that feels out of place and could be an interesting place for someone to do a subsurface scan on. The circle center is roughly located at (24.564862, -127.114101) for those that are curious.
(I'm no expert geologist though, so I could be wildly off about this hypothesis...)
Or perhaps they all trailed east instead of west?
In that case, they'd be in Africa and the Indian Ocean
So, funds for :
- finding all visible (or echovisible) craters on Earth, land or underwater. Shame we can't see those who are already gone.
- studies to identify their orgin, impact, volcanism or what else.
- date them... need dead plants deposits for carbon 14 and the technology to drill there... guess only land craters may gave their birthdate.
- establish if there is correlation, and design possible scenarios and their properties to prove the point of mass extinction possibility.
- for each scenario, estimate their probability to happen again, and what are required to face them, *to prove the need of the fundings in the first place and get them (or a start)...*
@@dolphingoreeaccount7395 Oh, good point. Didn't think about that option before.
I'd basically assumed the chicxulub impacter was the "center" one that the rest split off from, so it was somewhere close to the middle of the impact range.
It could very well have been the starting impact too and the rest trailed east.
I have some theories of my own a few simple events that explain 90 % of the unexplained in archeology
The sea floor east of Hawaii is all significantly newer than 65 Million years.
The sea floor round Hawaii is just on 60 Million years old.
My 1963 children's book on dinosaurs says that they went extinct because they were too stupid to compete with mammals. And so they all starved.
THAT is what I was taught when I was seven years old and I am sticking to it!!!
Chicxulub was bigger, but how fast was it going? If this one comes in 100 times faster it could pose similar energy at impact. Kinetic Energy = 1/2xMxV^2. velocity is squared in this equation.
It may have been us that finally wiped out the dinosaurs. When I say us I mean our ancient ancestors, small rodent like mammals. When the meteor hit the effects wiped out much of Earth’s life but there were surviving dinosaurs that would have eventually made a comeback. The ancient mammals would have survived by burrowing and eating whatever they could find which would have included dinosaur eggs and eating those dino eggs prevented a repopulation and finally completely wiped out dinos.
nah... the dinos were dead meat when our ancestors started to take over their empty niches... the exception would be the birds and crocodilian dinos.
@@rustythecrown9317 small mammals existed along with the dinosaurs
@@alexbowman7582 well aware of that , but they didn't prevent the dinos from coming back, the dinos weren't ever coming back.
The dinos were alive, possibly not well though towards the last centuries. The history has plenty of evidence of their recent presence. Dinos = dragons.
Also check out Mary Schweizer's findings of nonfossilized dino remains.
@@i7Qp4rQ the only dinosaurs to make it to recent times are birds , crocodilians and turtle like creatures... that's about it. As for dragons , they never existed except for the animals the WE named as dragon , i.e. Komodo's . I can believe the ignorant peons from days gone by might think of dragons when they found a fossil as their backwards , uneducated brain were unaware of paleontology.
It was The Hudson Bay impact, that had with it other Asteroids & Meteor impacts, that also created the Low Land for the Great Lakes and The Gulf of Mexico, at the same time.
I doubt it very much. Ice glaciers dugout the fresh water oceans in America
Every time I look down on earth I see giant craters (thanks Google earth!) and the gulf of Mexico looks like a giant crater that entered the atmosphere at a very shallow angle.
Glad you stated the obvious: Hudson Bay looks like a stupendous impact crater but no one has even explored that idea.
completely wrong im afraid
Hudson’s Bay is glacial in origin.
It is still rebounding after the last ice age pushed it down.
It’s beaches have risen 130m since 7,500 years ago when the last ice sheet melted with the coast moving up at about 12mm per year.
It is currently estimated that Hudson’s Bay had 3km of ice sitting on it at the peak of the ice age.
probably the biggest killer was the impact winter, an intense global ice age which lasted for years...
It could have been a lot worse. Something the size of the Moon could have hit Earth instead.
Perhaps a large planet sized mass or a close passing star gravitationally upset the Oort Cloud resulting in many comets being hurled towards the inner solar system. If so the impacts were probably connected to the same event but may have been many years apart.
Nope.
We don't know when it comes to the planet (or planetoid) body, we can't see a non glowing body in the dark of the sky. However, about your star, or a small wandering black hole that should emit at least a tiny whole bunch of radiations, there is none going away from us or kind of orbiting us. We are aware of a star that made a fly by, near the solar system (by near, it means very far away you could spot it with naked eye as a star dimmer than normal stars we have today), but it was billions years ago.
So, noone can entirely disprove the large cold dead body whatever it is lurking out there outside the Oort cloud. But our model of known comets orbiting Sun closer than they should tells us there is no body larger than Mars out there, if any, because a body larger than that would have caused much much much much more comets and rocks bombarding our inner Solar system. The point is, ONE large body fly by from an outer system, billion of years ago, disrupting the system, and it took one of that rock billion of years to finally impact Earth after countless attempts, some 65-66 millions years ago... maybe. But you don't need an outer system planet to get there, our Solar System and the remains of its unstability is enough. It's not because a large object displaced a large comet that it will impact Earth as its prime target. That's 0.0000000001% likely. You would need occurences of such event everyday for the last billion years to raise that probability at a very realistic likeliness, because, before the Earth, there are multiple bodies that serve as our shields : the Sun, Jupiter, Saturn...
They usually don't. The ones that caused the flood 12.500 years ago, came in from the same Taurean Cloud as the dino-killers in something like 5 pieces, from the Northen part of Greenland to the Hudson Bay area.
WTF? What flood?
@@kevinwebster7868 younger dryas event
@@Womble1252 caused by a micro nova from our star
All the craters talked about are nothing compared to the one in the drake passage and it even has the scare of possible exit
There WAS a flood 12,000 years ago, but that was caused by a solar flare from the sun. It was that hot it melted all the ice within a day and flooded the entire planet 👍
Brilliant 😊
This is such a a plot twist. So asteriod-chan had a companion
I like the idea of an asteroid breaking up in the Earth's atmosphere. Otherwise, the chances of such close pair of hits coming from the vastness of space would seem pretty low.
"low" - is still far from zero
Could have been two separate rocks that came from the same source at the same time; perhaps the result of an impact in space...
@@raginald7mars408 Until there's more evidence, ideally our guesses will be based on Occam's Razor. The simplest possibility would seem to be an asteroid breaking up. The other possibilities are very low probability because, as another person here mentions, moonlets and other companion objects would tend to be dispersed when they hit the atmosphere.
Still, more evidence might answer those questions.
@@AlmostEthical The Art of Fiction -
create the reality you want to believe.
I believe Nothing
I am a Biologist...
there will be no evidence
How do you date a crater????
Fiction
@@raginald7mars408 By the materials it leaves. How do you date anything?
It is too hard for me to believe that a meteor could do such damage unless it was at least 1/4 of the size of planet Earth. It would look like a mountain or a huge island at sea.
do not forget the impact velocity. An object of 1/4 of the size of the earth hitting with 40.000 km/h would probably destroy the earth.
Velocity makes all the difference in the world. You take a golf ball size stone and throw it at a house and it's just gonna make a loud noise. You get that stone up to 50 thousand MPH and it will destroy an entire neighborhood
Do you find it hard to believe bullets aren't the size of basketballs? It's velocity, not just size, that creates damage.
A quarter the size of earth? Causing a crater? 🤦🏻♂️😂😂😂😂 OK, yeah, totally feasible hahaha... There would be no earth left. The dinosaurs were made extinct by a 6 mile wide asteroid so one the size you're talking about would of obliterated the planet, FACT.
@@kopite31 It is estimated that the moon war formed by and object that large hitting the earth
Multiple impacts may have been due to the Asteroid crossing its Roche limit whereby the side of the asteroid facing the earth is under greater gravitational pull than its opposing side, thus pulling the rock apart.
0:04 Dinosaurs had some pretty good electrical infrastructure such as lights etc 😂
Would it make sense that the impact of the asteroids initiated / created volcanic activity?
Or rather new activity. Clearly volcanic activity is already otherwise ongoing.
No. But I like the way you think. Explore possibilities, even the most fantastic. We won't know until we try.
Physics say nothing is impossible, only more or less likely. More or less probable. Get your degree.
Good luck.
@@stefanschleps8758 rather smug of you to think I need a degree. Beyond the MBA I have?
I feel you are correct
Of course it didn't.
I never thought it was just one asteroid, just didn't seem plausible.
Shoemaker-Levy was my proof-positive
Youve got a crystal ball ☄☄☄
@@HeavyMetalThunder180 its in the shop
There is bound to have been multiple smaller impactors. Now that we now how to look, more shall be found
Interesting. Thanks.
This is my Mexico is so magical
Upper Omra Komi Republic-view from the top of Google maps, an ancient impact crater is also visible
The depiction of a burning meteor in space, where there is no air, is inaccurate. The atmosphere is at most 100 miles thick.
It would be nice to see animations that include an accurate depiction of the geography of earth and what these impacts would look like when they hit these places what did the geography look like 66 million years ago at the Yucatán and Nadir.