@@Bildgesmythe I find it scary that you have come to terms with this. I grew up in a time when you could enjoy TH-cam without ads. “Broadcast yourself” has always been the guideline. Don't "apply a large corporation so that it can make even more coal." Mr. Petrov manages to keep the entire TH-cam experience as familiar as it was originally intended.
4:14 that moon graphic has blown my mind. Gosh space is so beautiful and interesting. I’ll never understand it in my lifetime and I’m so blessed to be alive for this incredible work
Some are of a metal type, which may be very dense and hard - that's yet to be clearly identified. To your point tho, I think these are relatively rare.
Another very interesting video, Anton. Thank you sir for all the time and work you do to bring us all the information that you have for so long now. You rock Anton.
...but now it's still not heading for Earth - they selected a large+small binary system so most of the smaller object would remain trapped by the larger object's gravity. The nearest approach of any fully ejected parts will hit Mars not Earth (but Elon Musk's projects on Mars will need to closely track them).
"Groundbreaking!" They sunk a meter below the surface of the asteroid, thus learning it was indeed a pile of dust and gravel loosely bound with gravity, static electricity, and ice. And a few boulders added, like raisins in an oatmeal cookie.
@@PeterPan-vt6sy right, although energy transfer in microgravity is not linearly proportional in any significant sense. With microgravity there's a different set of first law reactions that can be taken into account that a significant gravitational force can simplify. I'm sure there's more to consider in potential outcomes when gravity isn't automatically judging everything in a specific direction, but the amount of energy transferred is generally going to be the same, so long as we know or have an idea of the makeup to test against here on earth. But for it to not be that dense in makeup and still absorb that much of the energy (knowing a good bit was converted to thermal energy as well) is absolutely considered an overwhelming success. We can scale that and make significant enough changes in something much more dense to make a serious course correction with enough distance. Orbital mechanics are extremely finicky and small changes millions of miles away can equate to notable and useful shifts in trajectory by the time something did finally make it out our way. I'd argue that if we were facing a real threat the funding that a mission like this would get but be astronomical in comparison and allow for both a sizable increase in the energy we aim to transfer and the addition of goalsets like redundancy and fail-safes. My 2 cents
I was lucky enough to watch this event unfold live on TV, didn't even know about DART.. saw it by accident. I was amazed at the detail of the final images. Also, the accuracy on this project was unbelievable. Thanks Anton!
And just like that a major problem is solved! All we have to do now is detect the ones that are gonna hit us in time. Thank you for an update with a happy ending, Anton!
It's cool and all to think about, but as Anton said, there are at least a dozen other extinction level events coming our way long before we have to worry about an asteroid impact.
@@Bildgesmythe No they can't. Even if humans put their best effort at wiping us out odds are we would still be here, likely stronger than ever, a couple thousand years from now. They could have taken the entire cold war nuclear weapons arsenal from the entire world and mathematically distributed it to cause the most damage and we would barely have seen a dent. We can't use all our resources on Earth alone no matter how hard we tried as we are nowhere close to really running out of anything and we have done the best we could at abusing the top... idk, COUPLE FEET. Dump all the greenhouse gasses we can, nothing is likely to happen. Make greenhouse gasses machines and pump them for decades, again unlikely to see even a minor change. Its literally human ego and a bit of propaganda to convince you to not be a total piece of crap to our mother earth that makes us believe we stand a chance of ruining this planet, but the reality is even without almost 9 billion strong currently fact of the matter is the vast majority of the land on Earth has likely never even seen a human footprint. The Earth is Really... REALLY big and as stated above, all the nukes ever do not even come close to the energies needed to direct change in any meaningful way. Our best attempt would likely be a man-made super bug, combined with as many conflicts and effects as we can to try and stack damage for compound effects but even if we were lucky, we couldn't even get 90%. Thats almost 900 million people. Say we got 99.9% of the humans.... lol, still...9 million folks with now virtually unlimited resources, all the knowledge that came before and a mind set to rebuild the world finally directing all our effects into advancing science and not the bank accounts or land areas of powerful people. We can't kill ourselves if we tried. Not yet anyway. Fusion energy MIGHT, and that's a big might and a lot of dedication, change the equation a little and give us the smallest fighting chance at eliminating ourselves. Maybe fusion orbital geosync lasers pumping exactly 666nm IR as that is the only frequency of light that CO2 actually works as a greenhouse gas on. Dunno bout methane but with energy abundance I'm sure our creative minds could figure out cleaver ways to kill each other, we likely evolved where the one who is the most cleaver in killing the next guy lives to see another day. PS: AI Murder Bots and Orbital bombardment with realistic iron asteroids. That MIGHT get us close, but I doubt it.
Really? Statistically, the next larger asteroid impact is long over due.... Oh, and they still can arrive from funny directions. Means: when we detect one, it is already too late. So, we should not be worried. It is useless, to worry about things, which we can not change anyway.
Nope, the asteroid impact could be today, could be in a thousand years the others are also very hard to give a time frame to, and certainly the environmental catastrophists have WAAAY too much faith in their models
If a "pile of dust" asteroid were to hit the Earth, how much impact would it have on the Earth's surface? I can imagine a huge light show and very high temperatures generated at very high altitudes in the atmosphere, but would any shock wave reach the surface? Is there a thought that rather large rocks are hidden within the "pile of dust", large enough to cause significant damage at ground level? It sounds like this particular re-direction method would have a far smaller effect on a solid body.
These asteroids are not special. Those craters you see on Earth were made by them. Them not being bound together well doesn't factor into the equation for kinetic energy, (1/2)x(mass)x(velocity)^2. If you plug Didymos' density and diameter into the Earth Impact Effects Program available free online from London Imperial College, you'd see that it would be expected to break up at an altitude of about 50,000 feet and impact in a broken condition, releasing 24,000 MEGATONS of explosive energy. So yeah, some shock would reach the surface indeed and dig a 7 mile wide, 2000 foot deep crater. A very good light show and VERY high temps. For someone 150km away, the fireball would appear 11 times larger than the Sun and would feel 13 times hotter, giving them second degree burns over any parts of their body exposed to the sight of the fireball, while all the trees around them ignited. 30 seconds later the seismic shock would arrive, which would feel like a 6.5 magnitude earthquake, which is weaker than it would otherwise be because I had it land in a 2km deep part of the ocean, so a 15 foot high tsunami arrives 18 minutes which finishes off whatever was left after the air blast of 120mph arrived at 8 minutes after. Damage would indeed be, significant.
Good question. As with Chelyabinsk, a large airburst will shelter smaller rocks lower in altitude before giving them a kick. Even if most or all of a rubble pile this size were to ablate before impacting Earth in a fireball crescendo, the shockwave and harder debris (depending on its eating history) could be deadly. Tunguska-scale at minimum. Also yes, Dart's impactor traded a surprising amount of energy with dust in the opposite direction, after piercing the object was a cotton ball. If we're optimistic, some asteroids with giant solid cores may have an electrostatic fluff blanket that could give bonus thrust. If we're mission planning, best to assume the impactor hits an outcrop of the solid core on the surface and does not cause bonus thrust.
Wow, the formation of binary asteroids seems analogues to how I often imagine the Earth-Moon system looking while forming. Simplistic speculation, but fun to see simulated. We should redirect asteroids to the lunar surface for some greedy space-age mining operations. Fun stuff. Thanks Anton.
The really fascinating results will be in finding out just how much the change of Dimorphos's orbit around Didymos will effect the overall orbit of the pair of them around the sun. Thanks Anton!!
Wouldnt these rubble pile asteroids pose little threat to Earth anyway? Our atmosphere should make short work of them if theyre mostly dust and sand. It's the ones with metal cores that we would need to find out how to redirect.
TALKING OF DINOSAURS & ASTEROIDS... There's a funny animated short video (that gives a new way why Dino's died out) - KIS KIS - Keep It Short - 'Dinosaurs : The True Story'. I love the ending! 😂😂😂. 😎🇬🇧
@teaboy8362 no but I also (after an injury) have this fear of falling into Jupiter. So much so, I have trouble watching TH-cam videos of it. Freaks. Me. Out.
@@oatlord But, going through a mist is basically like going through Jupiter or Saturn, also first of all, for comfort or not, you're not gonna be falling in alive you're gonna die either suffocated from space, from heat or pressure, most probably pressure, your phobia is sort of like, ''I feel a terrible fear of falling into a blackhole" (melanoheliophobia) but you'll never reach the blackhole itself you will surely die before
The sudden brightening was an electric discharge which occurred just before impact. In fact every one of the "anomalies" that has been observed can be fairly easily explained if you mostly ignore "gravity" and concentrate on the electric.
I remember watching the progression of their experiment and overall feeling like maybe we should be more cautious as the obviousness of them getting more bang for their Buck than expected played out
I wouldn't be too surprised if you said "Previously it _wasn't_ approaching planet Earth. But after a lot of double checking and observation, it _kinda_ is now."
Question: Doesn't this also show that accurately predicting asteroid orbits becomes considerably more difficult if small collisions can cause almost randomised changes?
Hello sweet Anton we hope here you are ok you seem tired Knowing you have a family is there we understand take care love these! Great always interesting
I was searching the comments for someone pointing this out. How come, given how much we know about this pair of objects, and knowing all the data of the probe itself, the results are so off? And yet now "we know" it will eventually land on Mars. Given the previous experiment, it might as well end up on Saturn.
Absolutely cool Anton! You said it well. I compare the matter on this mission similar to the Sand Man in the movie Spiderman. When he tries to move, it is the electrostatic bonding of particles that gives it strength. A future mission should attempt to repell the particles with a bias, more controlled energy instead of a messy dust cloud. VERY COOL!!!
We can now prevent our extinction by asteriod, but while achieving that capability, we've at least made sure the demise of our civilization by every other means.
@@baomao7243 People in power gets there cos they prioratise power over everything else. In life, you get what you pursue. But don't think that they are idiots. They are not. Peole who think that way are.
Democratically elected, people get the governers they deserve. Seeing them as idiots is insulting to the voters. Although, some elected officials make it hard, to not think of them in a very insulting fashion.
@@MichaelWinter-ss6lx What is democracy? Govt. of the people? Is, electing one among a few carefully catered choice (party nominated) really election? Do such system actually puts "people’s representatives" to power?
Maybe most asteroids have a small moon for this reason. A lone object will spin-up over millenia because of sunlight and its initial rotation and if its a rubble pile, a ring gets thrown off the equator that becomes a moon. After that, additional solar energy effecting spin gets dampened by tidal forces and the energy just moves the moon farther and farther away. This prevents another runaway spin so no more moons spin off without a collision or something.
Another wonderful video by a wonderful person. And perhaps the most appropriate use of the word "profound" I've heard in several years. That's wonderful, too.
When I was a kid we thought asteroids were actual lumps of rock, like the moon or mercury but more... well, potato-ey. The idea that they're really just blobs of gravel stuck together out in space is so cool to me.
Thanks Anton. It is intriguing, when I was young, in the 1970s!! - there was a theory that proposed the Moon formed from material flung off an early and very rapidly rotating proto-Earth - this theory was soon dimissed as it was claimed that a body could not rotate fast enough to fling material off without completely falling apart - and yet now we have evidence this can and does happen, at least on a small scale. I do wonder how one of these asteroids would interact with the atmosphere, with such small forces holding them together I cannot imagine that their mechanical strength would survive entry into the atmosphere - I would image they would be torn apart and the sky filled with tens of thousands of boloids - likely far worse than a single impactor in many ways because they would like create thousands of impact events and start a lot of wild fires - I suppose there would be a clear cutoff point between being hit by a large solid impactor or a large fragmented "rubble pile" because at some point the single impact would release sufficient energy and debris that size would be a moot point.
thanks for the updates anton and looking forward to future videos as well my one question is did changing dimorphos' orbit effect didymos's orbit as well? it seems like it should but i've never heard it mentioned
Noticed that it’s electromagnetism that holds it together. Electromagnetism plays a significantly larger role in our universe than cosmology is ready to accept. We’ve seen comments that have zero ice and we’ve seen asteroids turn into “comments”, and that’s due to its charge versus the charge of the Sun interacting Cosmology is so incredibly stubborn, but one way or another it will change its ways It shouldn’t take so long to collect data
"Held together with electrostatic forces and a little gravity" says a lot!!! Please explore this comment more!! Has the Space Station ever explored this observation with collected space dust samples? Awesome stuff Anton!!
A long time ago, people looked up at the clouds and thought "Look how fluffy it is! I bet I could lie on that like a pillow!" But we found out we were wrong. A cloud upclose is like fog. There's nothing to sit on. Wouldn't it be amazing if the same thing happened with asteroids? If we found out that, instead of a solid rocky surface, it's basically a bunch of chalk dust being barely held together by electrostatic forces?
I still think there need to be more similar missions to DART that are directed at asteroids we have very high certainty are of different composition to these common rubble piles (like metalic asteroids) to ensure we have all our bases covered. Asteroids of larger sizes should be tested too.
I often have wondered if it would be possible to "build" a new planet by colliding the asteroids in the belt, or by forcing a Mars bombardment that might allow it to grow enough to be able to maintain a thicker atmosphere.
This makes me wonder - if some asteroids are basically just a dust pile barely holding together only because there isn't anything else in the area to pull them apart with its gravitation - what would happen if an object this fragile was to actually enter the atmosphere. Would it even hit the ground? Wouldn't it just spontaneously fall apart the moment it passes the lower orbit when the atmospheric drag would kick in?
If they're so weakly held together, why wouldn't they break apart immediately when entering the atmosphere, and not cause any heavy impact as a result? Or are they harder further below the surface?
This would make mining these asteroids easy. Wrap it in a balloon, add atmosphere, vacuum up the small material, when that's gone scoop up the bigger rocks.
Would a rubble pile asteroid even survive a descent through the atmosphere sufficiently enough to cause catastrophic damage in the form of a massive crater? I could see the asteroid immediately flattening or falling apart during descent. This would of course mean a large shower of significantly smaller objects, but most of them would “relatively” small craters.
The news that we can actually alter the orbit of a collision course is good news indeed. We just need to find the asteroid orbit in good time to launch a rocket
If carefully with negligent velocity place a mug on the surface, it will not sink it due to lack of gravity. It will just adhere to the surface like a fly to fly paper. And yes I know using likening's is a bad idea!
Could it be that all asteroids are structured like this? where when entering the atmosphere, they burn up and spread out enough not to cause any damage, since they are not solid objects, but only appear that way in a vacuum because of the gravitational pull. Q: If an astronaut takes a space walk, at the speed they are traveling around the planet, would a grain of debris, cause an explosion or would it bounce off the suit?
Depends how fast the debris is travelling. If it’s orbiting in the opposite direction, impact speed could be several thousand km/hr so even something really small could cause serious damage.
"... a solution to a problem the dinosaurs could not solve." Pure gold! LOL!
🤣
Margnarg 🦕was thinking hard about it, but his brain was just too small!😢
I just opened comments for the same... that is the perfect joke... i think every flat in my house heard my laughter
At least the Dinos didn’t destroy themselves. How about re-directing ourselves?
@@tomasznojemsky792 And his level delivery made it even better!
What makes Mr. Petrov's videos so pleasant, besides the nice greeting, is the absence of advertising. Truly a win for all of us.
I don't mind advertising! Through a few pennies to those that deserve it! Like, subscribe, share and watch the ads!
TH-cam has occasionally interrupted Mr. Petrov’s videos with advertisements. It’s becoming more frequent.
@@Bildgesmythe I find it scary that you have come to terms with this. I grew up in a time when you could enjoy TH-cam without ads. “Broadcast yourself” has always been the guideline. Don't "apply a large corporation so that it can make even more coal." Mr. Petrov manages to keep the entire TH-cam experience as familiar as it was originally intended.
so, donate?
less ads the better, ads having been pushing the boundaries of acceptability with the way they've been ramping up the amount
"Hi wonderful person!" Anton's greeting made me smile. It's so sweet. ☺️
He says 'hello' not 'hi'.
I have never seen such a sweet smile as Anton's. It warms my heart.
Always a welcome thing to hear!
4:14 that moon graphic has blown my mind. Gosh space is so beautiful and interesting. I’ll never understand it in my lifetime and I’m so blessed to be alive for this incredible work
Simp harder!
"That problem that dinosaurs could not solve" is perfect.
Good bot!
this is the FIRST SPACE ENGINEERING project
we changed an orbit, and altered the shape of the asteroid on purpose
Still... the technology and the science involved are just incredible. Some really brilliant minds on this planet!
I love the dry humor.
Yes! Few appreciate this!
Me too❤.
10:20 - 10:36 For example! Love his gesture to the dinosaurs punctuating his point!
I'd say looking for big rocks that might hit us was a big motivator fairly early.
This makes us different from every other species in history.
I imagine most asteroids are space dust bunnies.
Ha nicely put
Maybe that all are except that one that is going to get us
Ahhh, I have proto-asteroids under my bed :)
@@kensmith5694 Exactly. Seems it works well for this case, but what other cases are there?
Some are of a metal type, which may be very dense and hard - that's yet to be clearly identified. To your point tho, I think these are relatively rare.
Wonderful as always Anton. Thank you. 😁
Another very interesting video, Anton. Thank you sir for all the time and work you do to bring us all the information that you have for so long now. You rock Anton.
It reminds me of a Star Trek (original) episode where a ground-based laser, left behind by a more advanced civilization, redirects an asteroid.
"The Paradise Syndrome."
When Kirk married Miramoni
It wasnt heading for earth...but now...
Read my comment above LOL
...but now it's still not heading for Earth - they selected a large+small binary system so most of the smaller object would remain trapped by the larger object's gravity. The nearest approach of any fully ejected parts will hit Mars not Earth (but Elon Musk's projects on Mars will need to closely track them).
He's coming for revenge?
Had the same thought 😂
Lol was thinking the same
"Groundbreaking!"
They sunk a meter below the surface of the asteroid, thus learning it was indeed a pile of dust and gravel loosely bound with gravity, static electricity, and ice. And a few boulders added, like raisins in an oatmeal cookie.
That is not at all a dismissive amount of change in the orbital period, especially for such a loosely bound body like that
@@MrAwesomeneshtrue but you gotta think about all that energy being transferred on impact. Especially in zero gravity
@@PeterPan-vt6sy right, although energy transfer in microgravity is not linearly proportional in any significant sense. With microgravity there's a different set of first law reactions that can be taken into account that a significant gravitational force can simplify. I'm sure there's more to consider in potential outcomes when gravity isn't automatically judging everything in a specific direction, but the amount of energy transferred is generally going to be the same, so long as we know or have an idea of the makeup to test against here on earth.
But for it to not be that dense in makeup and still absorb that much of the energy (knowing a good bit was converted to thermal energy as well) is absolutely considered an overwhelming success. We can scale that and make significant enough changes in something much more dense to make a serious course correction with enough distance. Orbital mechanics are extremely finicky and small changes millions of miles away can equate to notable and useful shifts in trajectory by the time something did finally make it out our way.
I'd argue that if we were facing a real threat the funding that a mission like this would get but be astronomical in comparison and allow for both a sizable increase in the energy we aim to transfer and the addition of goalsets like redundancy and fail-safes. My 2 cents
I was lucky enough to watch this event unfold live on TV, didn't even know about DART.. saw it by accident. I was amazed at the detail of the final images. Also, the accuracy on this project was unbelievable.
Thanks Anton!
Thank you for another great video!!!! I hope your day is as wonderful as you are!!!
Hi Antonio, I hope you’re feeling well….looks like you have a bad cold. Take care!
Yes, stay healthy please
And just like that a major problem is solved! All we have to do now is detect the ones that are gonna hit us in time. Thank you for an update with a happy ending, Anton!
It's cool and all to think about, but as Anton said, there are at least a dozen other extinction level events coming our way long before we have to worry about an asteroid impact.
Yep, people can do it themselves 😢
@@Bildgesmythe No they can't. Even if humans put their best effort at wiping us out odds are we would still be here, likely stronger than ever, a couple thousand years from now. They could have taken the entire cold war nuclear weapons arsenal from the entire world and mathematically distributed it to cause the most damage and we would barely have seen a dent. We can't use all our resources on Earth alone no matter how hard we tried as we are nowhere close to really running out of anything and we have done the best we could at abusing the top... idk, COUPLE FEET. Dump all the greenhouse gasses we can, nothing is likely to happen. Make greenhouse gasses machines and pump them for decades, again unlikely to see even a minor change. Its literally human ego and a bit of propaganda to convince you to not be a total piece of crap to our mother earth that makes us believe we stand a chance of ruining this planet, but the reality is even without almost 9 billion strong currently fact of the matter is the vast majority of the land on Earth has likely never even seen a human footprint. The Earth is Really... REALLY big and as stated above, all the nukes ever do not even come close to the energies needed to direct change in any meaningful way. Our best attempt would likely be a man-made super bug, combined with as many conflicts and effects as we can to try and stack damage for compound effects but even if we were lucky, we couldn't even get 90%. Thats almost 900 million people. Say we got 99.9% of the humans.... lol, still...9 million folks with now virtually unlimited resources, all the knowledge that came before and a mind set to rebuild the world finally directing all our effects into advancing science and not the bank accounts or land areas of powerful people. We can't kill ourselves if we tried. Not yet anyway. Fusion energy MIGHT, and that's a big might and a lot of dedication, change the equation a little and give us the smallest fighting chance at eliminating ourselves. Maybe fusion orbital geosync lasers pumping exactly 666nm IR as that is the only frequency of light that CO2 actually works as a greenhouse gas on. Dunno bout methane but with energy abundance I'm sure our creative minds could figure out cleaver ways to kill each other, we likely evolved where the one who is the most cleaver in killing the next guy lives to see another day.
PS: AI Murder Bots and Orbital bombardment with realistic iron asteroids. That MIGHT get us close, but I doubt it.
Really? Statistically, the next larger asteroid impact is long over due....
Oh, and they still can arrive from funny directions. Means: when we detect one, it is already too late. So, we should not be worried. It is useless, to worry about things, which we can not change anyway.
Nope, the asteroid impact could be today, could be in a thousand years the others are also very hard to give a time frame to, and certainly the environmental catastrophists have WAAAY too much faith in their models
What an insightful comment! Good bot!
If a "pile of dust" asteroid were to hit the Earth, how much impact would it have on the Earth's surface? I can imagine a huge light show and very high temperatures generated at very high altitudes in the atmosphere, but would any shock wave reach the surface? Is there a thought that rather large rocks are hidden within the "pile of dust", large enough to cause significant damage at ground level? It sounds like this particular re-direction method would have a far smaller effect on a solid body.
I guess it would depend how fast it's going
Looking at the plumes of dust I expect there was enough energy that a solid object would have been converted to dust anyway.
These asteroids are not special. Those craters you see on Earth were made by them. Them not being bound together well doesn't factor into the equation for kinetic energy, (1/2)x(mass)x(velocity)^2. If you plug Didymos' density and diameter into the Earth Impact Effects Program available free online from London Imperial College, you'd see that it would be expected to break up at an altitude of about 50,000 feet and impact in a broken condition, releasing 24,000 MEGATONS of explosive energy. So yeah, some shock would reach the surface indeed and dig a 7 mile wide, 2000 foot deep crater. A very good light show and VERY high temps. For someone 150km away, the fireball would appear 11 times larger than the Sun and would feel 13 times hotter, giving them second degree burns over any parts of their body exposed to the sight of the fireball, while all the trees around them ignited. 30 seconds later the seismic shock would arrive, which would feel like a 6.5 magnitude earthquake, which is weaker than it would otherwise be because I had it land in a 2km deep part of the ocean, so a 15 foot high tsunami arrives 18 minutes which finishes off whatever was left after the air blast of 120mph arrived at 8 minutes after. Damage would indeed be, significant.
@@cheebee2659 I assumed 17 km/s which is typical.
Good question. As with Chelyabinsk, a large airburst will shelter smaller rocks lower in altitude before giving them a kick. Even if most or all of a rubble pile this size were to ablate before impacting Earth in a fireball crescendo, the shockwave and harder debris (depending on its eating history) could be deadly. Tunguska-scale at minimum.
Also yes, Dart's impactor traded a surprising amount of energy with dust in the opposite direction, after piercing the object was a cotton ball. If we're optimistic, some asteroids with giant solid cores may have an electrostatic fluff blanket that could give bonus thrust. If we're mission planning, best to assume the impactor hits an outcrop of the solid core on the surface and does not cause bonus thrust.
“Do you have astroids? no my Dad does.” Best movie line ever but I do love this channel and take astroids very seriously. I just had to say it
Classic
Wow, the formation of binary asteroids seems analogues to how I often imagine the Earth-Moon system looking while forming. Simplistic speculation, but fun to see simulated. We should redirect asteroids to the lunar surface for some greedy space-age mining operations. Fun stuff. Thanks Anton.
hello Anton you wonderful person.
We used Dart so that all those Asteroids out there didn't get any funny ideas.
Our funny idea was to Fart with Dart on the asteroid.
The dinosaurs could have got the first 3 but missed the one that got them. Possibly!
The really fascinating results will be in finding out just how much the change of Dimorphos's orbit around Didymos will effect the overall orbit of the pair of them around the sun.
Thanks Anton!!
Wouldnt these rubble pile asteroids pose little threat to Earth anyway? Our atmosphere should make short work of them if theyre mostly dust and sand. It's the ones with metal cores that we would need to find out how to redirect.
Very true
Thats what i was thinking
Yea we even got saved from asteroids before GTA6 now too.
@@mandogundam5779 I don't think this joke will get stale until it actually comes out😂
At least not for me
Woo, another dart update!
"we're just testing."
I would aay the same thing too if i wasnt sure it would work. Thanks for saving us NASA!
Thanks so much for sharing this information. Great job. Keep it up.
TALKING OF DINOSAURS & ASTEROIDS... There's a funny animated short video (that gives a new way why Dino's died out) - KIS KIS - Keep It Short - 'Dinosaurs : The True Story'. I love the ending! 😂😂😂. 😎🇬🇧
Great job,Anton. Cheers from the Pacific West Coast of Canada.
Hope you are well Anton , you do a great show.
True story: sinking into the center of an asteroid is a phobia I've had. Nice to know it's a real thing now, yay.
Fortunately for you I don’t think you have to worry about that phobia anytime soon…
@teaboy8362 no but I also (after an injury) have this fear of falling into Jupiter. So much so, I have trouble watching TH-cam videos of it. Freaks. Me. Out.
@@oatlord So uh, you have a phobia of mists?
@@Aureonw no. Specifically falling into Jupiter or Saturn. Very random fear, but I came out of the hospital with it. No idea why
@@oatlord But, going through a mist is basically like going through Jupiter or Saturn, also first of all, for comfort or not, you're not gonna be falling in alive you're gonna die either suffocated from space, from heat or pressure, most probably pressure, your phobia is sort of like, ''I feel a terrible fear of falling into a blackhole" (melanoheliophobia) but you'll never reach the blackhole itself you will surely die before
Now THAT is a properly-sized mug!! ☕❤
"Take that Dinosaurs"😂😂
That one made me smile lmao
I thought Anton was going to tell us new data would suggest it wouldn't work after all. Lol. Glad that wasn't the case.
Thank you Anton! Yay humans!
Thanks, Anton!
The sudden brightening was an electric discharge which occurred just before impact. In fact every one of the "anomalies" that has been observed can be fairly easily explained if you mostly ignore "gravity" and concentrate on the electric.
I remember watching the progression of their experiment and overall feeling like maybe we should be more cautious as the obviousness of them getting more bang for their Buck than expected played out
11:20 never gets old
I wouldn't be too surprised if you said "Previously it _wasn't_ approaching planet Earth. But after a lot of double checking and observation, it _kinda_ is now."
That’s what will happen with asteroid 99942
Question: Doesn't this also show that accurately predicting asteroid orbits becomes considerably more difficult if small collisions can cause almost randomised changes?
Thanks again, for an interesting video.
Hello sweet Anton we hope here you are ok you seem tired Knowing you have a family is there we understand take care love these! Great always interesting
The amount of space dust that lands on Earth every day is in the 100’s of Tons.😊
nobody could have guessed hitting into an asteroid could make such beautiful pictures !!!!!!!
awsome resume Anton, this research is really exciting!!
Wonderful as always Anton. Thank you! You inspired me to make my own YT channel 💛!
My favourite science channel on TH-cam. Love it.
Another fascinating video. I really enjoy when your personality leaks out every now and then. :)
Oh Anton you brighten my day every time I watch, I can’t help but grin ear to ear. I love your voice and could listen for hours.
This is wonderful news.
Another 10 years and the Slow Mo Guys will be doing videos in spaaaacccceeee!
Apparently, in astrophysics it's considered a success for the result of an experiment to be over 30x the predicted result.
I was searching the comments for someone pointing this out. How come, given how much we know about this pair of objects, and knowing all the data of the probe itself, the results are so off?
And yet now "we know" it will eventually land on Mars. Given the previous experiment, it might as well end up on Saturn.
Take that ya dinos!
Absolutely cool Anton! You said it well. I compare the matter on this mission similar to the Sand Man in the movie Spiderman. When he tries to move, it is the electrostatic bonding of particles that gives it strength. A future mission should attempt to repell the particles with a bias, more controlled energy instead of a messy dust cloud. VERY COOL!!!
How CooL is that?! 🎉😊
We can now prevent our extinction by asteriod, but while achieving that capability, we've at least made sure the demise of our civilization by every other means.
I’m not even sure govts could actually agree what to do despite “solution in hand.” I am not joking.
@@baomao7243 People in power gets there cos they prioratise power over everything else. In life, you get what you pursue. But don't think that they are idiots. They are not. Peole who think that way are.
@@aniksamiurrahman6365I've never considered them to be idiots. They're quite often evil though.
Democratically elected, people get the governers they deserve. Seeing them as idiots is insulting to the voters. Although, some elected officials make it hard, to not think of them in a very insulting fashion.
@@MichaelWinter-ss6lx What is democracy? Govt. of the people? Is, electing one among a few carefully catered choice (party nominated) really election? Do such system actually puts "people’s representatives" to power?
Maybe most asteroids have a small moon for this reason. A lone object will spin-up over millenia because of sunlight and its initial rotation and if its a rubble pile, a ring gets thrown off the equator that becomes a moon. After that, additional solar energy effecting spin gets dampened by tidal forces and the energy just moves the moon farther and farther away. This prevents another runaway spin so no more moons spin off without a collision or something.
Neat. I've been waiting for more reports on that test.
Another wonderful video by a wonderful person.
And perhaps the most appropriate use of the word "profound" I've heard in several years. That's wonderful, too.
Great comments.
Anton, I love your videos, I hope you are hungover, and not cold :)))) or covid.
When I was a kid we thought asteroids were actual lumps of rock, like the moon or mercury but more... well, potato-ey. The idea that they're really just blobs of gravel stuck together out in space is so cool to me.
Thanks Anton. It is intriguing, when I was young, in the 1970s!! - there was a theory that proposed the Moon formed from material flung off an early and very rapidly rotating proto-Earth - this theory was soon dimissed as it was claimed that a body could not rotate fast enough to fling material off without completely falling apart - and yet now we have evidence this can and does happen, at least on a small scale.
I do wonder how one of these asteroids would interact with the atmosphere, with such small forces holding them together I cannot imagine that their mechanical strength would survive entry into the atmosphere - I would image they would be torn apart and the sky filled with tens of thousands of boloids - likely far worse than a single impactor in many ways because they would like create thousands of impact events and start a lot of wild fires - I suppose there would be a clear cutoff point between being hit by a large solid impactor or a large fragmented "rubble pile" because at some point the single impact would release sufficient energy and debris that size would be a moot point.
Wonderful Anton, really enjoyed this one. Your humor is superb! Still laughing my friend, Thank You - PS - Love my shirt!
9.17 - No wonder you always look so sharp. That coffee cup is about the same size as my "damn it's early" mug!
"Solution to a problem the dinosaurs could not solve."
Never was the truth more true.
thanks for the updates anton and looking forward to future videos as well
my one question is did changing dimorphos' orbit effect didymos's orbit as well? it seems like it should but i've never heard it mentioned
“And of course a little bit of gravity”😂😂 Don’t wanna be demonetized.
Noticed that it’s electromagnetism that holds it together. Electromagnetism plays a significantly larger role in our universe than cosmology is ready to accept.
We’ve seen comments that have zero ice and we’ve seen asteroids turn into “comments”, and that’s due to its charge versus the charge of the Sun interacting
Cosmology is so incredibly stubborn, but one way or another it will change its ways
It shouldn’t take so long to collect data
You’re not with electric universe, right?
The info around 7:00 makes it sound like it's natural for anything to form a moon.
Rocks rock. Literally!
Asteroids that have flown really close to the sun might get melted together into one solid chunk though.
"Held together with electrostatic forces and a little gravity" says a lot!!! Please explore this comment more!! Has the Space Station ever explored this observation with collected space dust samples? Awesome stuff Anton!!
Quanto mi scoccia avere sempre ragione 😇
I wonder if this would make asteroid mining more practical. Hit it with one part and gather boulders with the other.
A long time ago, people looked up at the clouds and thought "Look how fluffy it is! I bet I could lie on that like a pillow!"
But we found out we were wrong. A cloud upclose is like fog. There's nothing to sit on.
Wouldn't it be amazing if the same thing happened with asteroids? If we found out that, instead of a solid rocky surface, it's basically a bunch of chalk dust being barely held together by electrostatic forces?
Would love to see some more simulations/animations of space-wonders ❤️
I still think there need to be more similar missions to DART that are directed at asteroids we have very high certainty are of different composition to these common rubble piles (like metalic asteroids) to ensure we have all our bases covered. Asteroids of larger sizes should be tested too.
Tremendous stuff, as usual. Thank you.
OK, we can redirect a fuzzy rubble pile. Now for the more solid types.
Those are very rare. Only from the cores of broken up proto-planets.
I often have wondered if it would be possible to "build" a new planet by colliding the asteroids in the belt, or by forcing a Mars bombardment that might allow it to grow enough to be able to maintain a thicker atmosphere.
This makes me wonder - if some asteroids are basically just a dust pile barely holding together only because there isn't anything else in the area to pull them apart with its gravitation - what would happen if an object this fragile was to actually enter the atmosphere. Would it even hit the ground? Wouldn't it just spontaneously fall apart the moment it passes the lower orbit when the atmospheric drag would kick in?
I think more scientific experiments should involve "smacking into it really fast".
If they're so weakly held together, why wouldn't they break apart immediately when entering the atmosphere, and not cause any heavy impact as a result? Or are they harder further below the surface?
This would make mining these asteroids easy. Wrap it in a balloon, add atmosphere, vacuum up the small material, when that's gone scoop up the bigger rocks.
Would a rubble pile asteroid even survive a descent through the atmosphere sufficiently enough to cause catastrophic damage in the form of a massive crater? I could see the asteroid immediately flattening or falling apart during descent. This would of course mean a large shower of significantly smaller objects, but most of them would “relatively” small craters.
Wondering if that would make minning easier?
Ground breaking right above LA oh no !!!!
Camera quality is crazy good
The news that we can actually alter the orbit of a collision course is good news indeed. We just need to find the asteroid orbit in good time to launch a rocket
If carefully with negligent velocity place a mug on the surface, it will not sink it due to lack of gravity. It will just adhere to the surface like a fly to fly paper. And yes I know using likening's is a bad idea!
Could it be that all asteroids are structured like this? where when entering the atmosphere, they burn up and spread out enough not to cause any damage, since they are not solid objects, but only appear that way in a vacuum because of the gravitational pull. Q: If an astronaut takes a space walk, at the speed they are traveling around the planet, would a grain of debris, cause an explosion or would it bounce off the suit?
Depends how fast the debris is travelling. If it’s orbiting in the opposite direction, impact speed could be several thousand km/hr so even something really small could cause serious damage.
@@simontillson482A "rubble pile" of rocks and sand would be torn apart by tidal forces caused by Earth's gravity before it got close.
@@simontillson482 That's what I would expect, does it every happen?
@@douglaswilkinson5700 I was replying to the astronaut question.
The bugs are launching meteors at earth from Calantha.
Would you like to know more?
Yeah, the dinosaurs' space program was pretty weak.
That was a big coffee mug.