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Asteroid Smashing Looks Like Nothing You Ever Imagined

  • Published on Sep 26, 2022 veröffentlicht
  • NASA's Double Asteroid Redirect Test (DART) mission finished yesterday in a spectacular crash into the Asteroid Dimorphos
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  • Science & TechnologyScience & Technology

Comments • 2 609

  • Tim Hahn
    Tim Hahn 2 months ago +929

    I worked the alignment team on DART doing all the pre/post metrology for the environmental testing. This one is definitely going on my resume.

    • Blood's thicker
      Blood's thicker Month ago +1

      Great animation

    • Harry Bawls
      Harry Bawls Month ago

      NASA bitch slapped that space rock....

    • g heart
      g heart Month ago

      @s-sugoi 😄

    • g heart
      g heart Month ago

      @Mad Scientific you really do lack intelligence 🙈

    • g heart
      g heart Month ago

      @Marcus Alexander including a camera they always forget looking back at Earth, his reply was childish at best.

  • Splarkszter
    Splarkszter 2 months ago +517

    i love how DART said "THIS IS FOR THE DINOSAURS" before he died. DART was a great soldier.

    • Son_Of_Jambo28
      Son_Of_Jambo28 Month ago

      Prehistoric avengers of the dinosaurs one for the lizard people leave us alone asteroids 🤣

    • Rotsen
      Rotsen Month ago +1

      for Rexy!

    • Norman Hoani
      Norman Hoani Month ago

      I'm sorry U peacefully beings out their in the universe...I only wanted to move the rock...I didn't mean to move Its trajectory towards U...my bad...heads towards a civilization wiping them out.

    • Donald Hetterscheid
      Donald Hetterscheid Month ago +2

      Now, now, this one is innocent. It has done nothing to us.... yet.

    • Davi SDF
      Davi SDF Month ago +1

      Truly, one of the missions of all time

  • onedeadsaint
    onedeadsaint 2 months ago +52

    as a more casual fan of space missions my first thought when you mentioned that they were crashing the cubesat into it was "isn't that gonna change it's orbit?" only to realize later on in the video that yes, it will because that was the whole point of the mission! so cool!

    • Ian Oliver
      Ian Oliver Month ago +1

      The CubeSat (LICIACube) flew by and survived, because its goal was to take photos of the plume. DART was much bigger than a CubeSat. If you look at some DART assembly photos, you'll see a box mounted at a funny angle on one side-that's the 6U CubeSat dispenser. (Both of these spacecraft have Wikipedia articles, BTW!)

  • Hobo Sullivan
    Hobo Sullivan 2 months ago +68

    I find fluid dynamics in near-vacuum (for example, the DART impact, the Starfish Prime test, and high-altitude rocket plumes) eerily beautiful.

    • American Light
      American Light Month ago

      Um, Comet Swift-Tuttle, _cough, cough_

    • Philosophical Tool
      Philosophical Tool Month ago

      @venbrou and "gaseous medium", yes. Sort of. But in a plasma state.
      In a way, nothing short of that good ol' aether.
      And with that back on the table, and said magnetics and currents stretching over many lightyears even, there's no use or need for Dark Matter, no Black Holes, nor Big Bang even.
      On the latter two the 'Sky Scholar' channel has some really good videos.
      And for a good laugh, you can always look up 'Professor Dave's' channel for all the 'debunking'..
      I mean, shameless ad homs, (all the way to his bank account, probably - for being a useful idiot. As I'm pretty sure the guy actually believes what he preaches.
      And as it's really 'popular' to not use any proper arguments and instead just resort to ad homs, while slipping down some circular slope on a bandwagon of authority...
      .. I get why it works for his audience, and his channel.

    • venbrou
      venbrou Month ago +2

      @Philosophical Tool I was originally speculating on the hypothesis of the debris traveling through some kind of gaseous medium. But the thought of electrical charge differentials causing the unexpected turbulence we see does seem more probable. After all... It's theorized that stellar and planetary accretion is driven by electrostatic attraction prior to the "chunks" having sufficient gravitation pull.

    • Philosophical Tool
      Philosophical Tool Month ago +1

      @venbrou 7:35 looks nothing like an electric discharge or anything, right?

    • Philosophical Tool
      Philosophical Tool Month ago +1

      @venbrou The title of the video and your own last sentence implies something much more important, or darker even, as I see it: that the whole fundamental premise of this gravity based paradigm, is not just wrong, but in a way almost the opposite of what's really going on in space.
      The pressure wave and/or "sort of atmosphere" you guys mentioned, are probably just electric/plasma effects.
      I'm guessing there was a lot more 'fireworks' going on with that crash, than expected?
      This has happened before too, with Comet 67P, at which NASA shot a projectile to measure the dust and supposed water vapor.
      It barely made a dent, because comets are NOT accreted ice and dust ball, but solid rock. And the coma and tail are electrical discharge from being negatively charged and entering the sun's positively charged 'atmosphere'.
      Spoiler: the universe is electric in nature - as above, so below, goes two ways. When here on earth everything runs on electric current/potential differentials, from our gadgets/machines to you reading this and me typing it, it prolly does so up there too.
      Now I'm going to watch the video to have my prediction confirmed. You know, how one tests his/her hypothesis.
      See what I did there?

  • Jeff Gann
    Jeff Gann 2 months ago +48

    I have never been disappointed or bored with your videos. This one maintains your perfect score Scott!

  • broomy143
    broomy143 2 months ago +1690

    Scott: "Fly Safe"
    DART: No, No I Don't Think I Will

    • Marcus Alexander
      Marcus Alexander Month ago +2

      I understood that reference...

    • A J
      A J Month ago +3

      @Helium Road - Hey now,...that's a good, positive way to look at it. If a little nudge is all it takes to keep one from hitting us, and we hit it when it's far enough out to keep it from hitting us, this could be a real system of protection for ALL "human-inhabited places", and you don't necessarily have to launch from where you are,...Earth's got this! :o) That "human-inhabited places" is going to grow by at least one, sooner than we all think. We already have 3, even though one was temporary, and one is semi-permanent. Mars will make 4.
      Space, was first for humans, then the moon, then in space around the earth in space stations, which have been around a lot longer than people realize, and now add Mars soon.
      We are still in our infancy as far as our space program goes, when compared to where we could be in 150 to 200 years or so, AND BEYOND! :o)

    • A J
      A J Month ago +1

      @Zinervawyrm - AT LEAST IT WASN'T BLUE!!!
      LoL,...i don't imagine everyone has had that happen on a 'puter, but i have, and it sucks,...and then some.
      But i was back up and running the same day, so it was a day well spent for a new #1. :o)

    • Fire Angel
      Fire Angel Month ago +3

      @NuclearMedicineman For me the best part of that story has always been that the plane sustained so little damage that they had it flying again within a few weeks.

    • Pirx
      Pirx Month ago +6

      I'm sorry Dave, I'm afraid I can't do that.

  • David
    David Month ago +23

    To think this all started when Andy Cheng had a 'light-bulb moment' when exercising one morning (chief scientist for planetary defense at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland). From thought to conception and a very successful one at that. Andy must be feeling very proud of the team that helped design a test that could potentially save the planet in the distant future. I hope it's a very distant future too. Looking forward to the results of the test in the next few weeks. Thanks Scott for the extra pictures.

    • David
      David Month ago

      @Peter Carroll Crashing a satellite into a celestial body has been done way back in 1959 when the Russians deliberately crashed the Luna 2 into the moon. It has been done many times. But this is the 1st time it has been done to see if there is an observable change of orbit on a 'Dual Asteroid'. The Temple 1 objective was to analyse the resulting debris, to study the composition of the ejected material. So sure, it has been done before, but the following satellites used in the analysis, were totally customised for different objectives.

    • Peter Carroll
      Peter Carroll Month ago +3

      Andy Cheng, WRONGLY claimed, this had never been done before, it had! On July 4, 2005, 17 years earlier, an 820 pound copper 'impactor', was crashed into comet Temple 1, in NASA's Deep Impact experiment.

  • Harry "Nic" Nicholas
    Harry "Nic" Nicholas Month ago +8

    i worked on simulations for the ESA soho project when it launched, i also did a ton of animations around the oort cloud comets, various earth bound telescopes and (this was the late 80's) even visuals of colonising asteroids, not to mention i did a number of animations for the 1999/2000 BBC series "the planets". i've actually lost count of the number of times i've built a model of the solar system - so i've had to do a lot of visualisation. this is how i would imagine a small "moon" starting it's very early life, little pieces of rock just pulled together, not enough gravity at this point to crush anything, just enough gravity to squash the rocks compacting. fantastic bit of imagery and thanks for rehashing the frames!

  • awnx ruyv
    awnx ruyv Month ago +3

    For some reason I hadn't realized they were aiming at the tiny moon so it was amazing to watch it fly past the big asteroid and watch the big asteroid leave the frame.

  • Louis Sivo
    Louis Sivo Month ago +22

    I watched the original impact live, but thank you for collecting all the follow-on video and bringing it together. I had not seen any of this. You put together a great and tight package of information. Honestly you are better than the news sites covering this event.

  • Andreas Vox
    Andreas Vox 2 months ago +436

    One conclusion is obvious already: Dimorphos doesn't have an Impactor Defense System.

    • Andreas Vox
      Andreas Vox Month ago +1

      @534th NANITE SWARM LEADER as I understand it the ESA will do another reconnaissance mission in five years time before the invasion is greenlit.

      534th NANITE SWARM LEADER Month ago +1

      Does that mean the Dimorphosian Invasion is a go?
      Their defenses are weak, it's the best time to strike...

    • David Litz Media
      David Litz Media Month ago


    • Lola Lilly
      Lola Lilly Month ago +1

      Probably due to some idiot in charge like Lis Truss

    • Nate
      Nate Month ago +3

      Well sure, but dimorphus IS the impactor defense for Didymos! Mission success for all didymosians

  • George Dreisch
    George Dreisch Month ago +14

    The plume seems to indicate the impact rang it pretty good. The plume being on one half says a lot about the shock wave propagation and it’s structure.

  • Æmyv
    Æmyv 2 months ago +12

    The images are just spectacular! DART was an absolute success and I'm so proud of all the people who work on these projects 👍 And great video, your explanations are always fantastic 🚀

  • Kedo
    Kedo Month ago +10

    Really nice work on putting together information from multiple sites and streams. Its quite incredible to watch.

  • Neil Hopwood
    Neil Hopwood Month ago +7

    I've been dying for an overview of this mission, and this is more than explained it. But WOW those images were so striking! Figuratively and literally. Incredible. My grandad would never believe it.

    • Sean Richardson
      Sean Richardson Month ago

      @Genie Jack His granddad might have been ignorant. You though.. you're just stupid. Ignorance, unlike stupidity, can be fixed.

    • Genie Jack
      Genie Jack Month ago

      Your Grandad would have been correct

  • Sandeep Jangra
    Sandeep Jangra 2 months ago +408

    Thank you for not clickbaiting and showing the actual footage. This was amazing.

    • Rikkousa
      Rikkousa Month ago

      Stanley Kubrick would be very proud.

    • Michael
      Michael Month ago +23

      yes, scotty doesnt do clickbait. real science doesnt require clickbait techniques. science and tech is its own bait for real science buffs.

    • Steri Opticon
      Steri Opticon Month ago +26

      @RabblerouserGT Yes, we were pleasantly not surprised.

    • RabblerouserGT
      RabblerouserGT Month ago +56

      Scott never clickbaits. He's a proper astronomer, not a news outlet. :V

  • 3henry21
    3henry21 Month ago +1

    Amazing!! I'm always in awe how we can hit a far object like that, when the earth was moving when the mission was launched, and the asteroid is moving as well. The calculations needed to get the rocket and asteroid to meet up at the precise time in the future... mind boggling.

    • Simon Geard
      Simon Geard Month ago

      It's not quite as impressive as you imagine, because the vehicle isn't just a passive projectile launched from the earth - it's a vehicle under power, regularly adjusting it's course based on updated information. It's still pretty cool, but it's not like they hit the asteroid with a trajectory locked in at time of launch.

  • Mobiyus
    Mobiyus Month ago +85

    The lead-navigator for DART is a french-canadian woman called Julie Bellerose. She recently did a bunch of interviews in french-canadian news outlets about this mission and her job. Fascinating stuff.

  • Jane McGann
    Jane McGann Month ago +1

    Thank you Scott for taking the time to explain space stuff in simple but not condescending language. It’s very appreciated.

  • Twisted Movies
    Twisted Movies Month ago +11

    I can always count on a Scott Manley video being right at the top when I need to know something about anything that just happened!!

  • goatflieg
    goatflieg Month ago +8

    After watching the live coverage I was eager to see your synopsis with additional imagery. As always, you did not disappoint. Thank you!

  • Costa Rich
    Costa Rich Month ago +1

    Great stuff! Was the collision 'head-on' or from behind? Hard for me to tell with so much stuff in motion. Another way of asking is do we expect a shorter or longer period after impact?

  • Toblexson
    Toblexson 2 months ago +2

    One of the few times that success includes crashing into some rocks face first. Although in many ways I suspect that this was the easy part of the mission. Gathering data from the images, calculating potential variables and formulae, and creating mathematical models to simulate this event are merely the next step in the process. I wonder when we'll be seeing another asteroid faceplant to test the predictions made by the models produced from the data gathered here.
    I also wonder if this data could also be useful for examining the stability of small planetary bodies, and for examining how gravity behaves on a small scale like this. Asteroid exploration, science and mining will need to consider a lot of factors that just cannot be modelled physically on (or in orbit of) Earth.

  • Paul Bennett
    Paul Bennett 2 months ago +4

    Absolutely incredible images the last few images before impact reminded me of my own back garden. I have two wonderful large erratic boulders and hundreds of smaller rocks in the clay. Nice to see I have a scale model of this event. Location I'm on the east coast of Canada eh! The perils of being a geology and space Geek. :o)

  • Meat Fractals
    Meat Fractals 2 months ago +629

    The view of the impact from earth gave me chills. Unbelievable.

    • bobby gibboney
      bobby gibboney Month ago

      @Chris Ehmke cmon , the view is from inside a dark room, it’s soo freaking fake I’m lost for words for people that can’t see it .

    • Gary Oldham
      Gary Oldham Month ago

      @Lilly Anne Serrelio
      There is some percentage of Truth in Scientology and there is some percentage of untruth. Just like with all religions.

    • Gary Oldham
      Gary Oldham Month ago +1

      The gospel singer? Possibly related somehow but not that I know of.
      Actually I am. A nephew named Doug Oldham but that's not the one you're referring to.
      I'm strong on living and learning, spiritual beliefs but not dogmatic religion. I don't actually believe some are saved and some are destined for hell. I believe that everyone lives according to the initial intent. To live and learn. So when I said God's going to get you for that! That was a joke. I don't believe in a god of wrath. I don't believe any of the writings of men got it right. I believe that all religions are written by men and all religions are an attempt to put into words a great mystery. An attempt to put into words that which cannot be put into words. Much better to just live and learn, apply those lessons only to oneself. Never to impose them upon others. Certainly never to threaten others with hell judgment or to convince people that God hates them for their sins. Life has taught me that if there is a God and if that God is fair and just that God certainly would not create human beings to be imperfect and then hate them for their imperfections. Instead that God would recognize that we will live and learn. and if that was not the initial intent then God would have provided a book written by himself that could be trusted. Because many people simply are turned away from the Bible because Christians keep calling it the word of god. They plainly know that it was written by men. And men who write books have no right to put words in God's mouth.
      The Bible contains a huge percentage of truth. Because humans are capable of writing truth. But it also contains some percentage of untruth. Because humans are also capable of untruth.
      As Paul said, in this life we do not know all things. We see through a glass darkly.
      There are so many flaws in the Bible and that doesn't bother me. Because I don't see it as the word of god. It was written by men. You can look at the top of each book and see the name of the author and nowhere does it say god.
      I was just joking to say "God's going to get you for that!" Slandering NASA and claiming that they are faking everything bothers me because they are wonderful people all about Discovery and sharing those discoveries. They are not at all about deceiving anyone. But no, I don't believe in a god of wrath. God's not going to get you for slandering nasa! It was a joke. It was written in the language that an indoctrinated Christian would understand. It's a common saying among christians.

    • Dustin Courtney
      Dustin Courtney Month ago

      There will be genius’s who say it didn’t happen lol

    • Chris Ehmke
      Chris Ehmke Month ago

      The view is from the impact probe itself.

  • Skank or You Can Call Me Maurice

    I watched this on the NASA live feed. Very cool! I was quite surprised to see the boulders like that, I was expecting to see some rocks covered in dust like a layer of gray snow on everything. This looked like a usual landscape on earth when doing some desert-hiking, amazing.

  • Professor Jay Tee
    Professor Jay Tee Month ago +1

    Essentially the large cloud of material blowing off in the direction of the impact can be thought of as an action, to which the 'reaction' (think Newton) would assist in changing the orbit of Dimorphos. This may indicate that rubble-pile asteroids are fairly easily diverted. Time will tell!

  • master shooter64
    master shooter64 Month ago +1

    wow this must've been the fastest deep space mission ever, it launched in 2021? wow

  • A Canuck
    A Canuck Month ago +4

    What a superlative experiment (and brilliant conceptualization). Thank you for giving us greater insight.

  • Aubrey Freeman
    Aubrey Freeman 2 months ago +491

    The final minute or so was like watching universe sandbox zoom in on an object. I was also surprised how fast the images updated. I didn’t realize they had that high a data downlink

    • MattelAquarius
      MattelAquarius Month ago

      @Son&PopCo-OP Yes, we love them. NMH (nodding my head). ;-)

    • Allan Gibson
      Allan Gibson Month ago

      @Son&PopCo-OP Guess what. They are. Ice is quite stable in a hard vacuum if it is below freezing. Look up a steam table some time.
      Anything closer than Mars however and ice melts and sublimes due to solar heating. Comets also have frozen gases, ammonia and hydrocarbons with lower boiling points so start to off gas after passing Neptune… That’s where comets get their tails from.

    • Star Gazer
      Star Gazer Month ago +1

      @Scott Wheeler You're just talking about normal restricted change control processes (though as I recall those only applied to manned missions - this Artemis isn't manned). I'm familiar with this. I worked for a NASA telecom provider during the Shuttle era, and we weren't allowed to remove circuits while the Shuttle was launching or landing. What does that have to do with DSN not supporting other missions - which was the subject of the comment you replied to?

    • Son&PopCo-OP
      Son&PopCo-OP Month ago

      @Allan Gibson ICE? --- I had to back myself back up for a pause. say again ICE?? Are you still operating under the delusion that comets are made of frozen water????!?! AHAHAHA !! okay.

    • Son&PopCo-OP
      Son&PopCo-OP Month ago

      @Allan Gibson : "Space-Time" the Modern epicycle, it gets spouted so often... soon to be an insult.

  • Don Joyce
    Don Joyce Month ago +1

    This experiment will also help us to determine exactly how much power we need to divert from the warp core to the main navigation dish.

  • Kedo
    Kedo Month ago +1

    I worked the alignment team on DART doing all the pre/post metrology for the environmental testing. This one is definitely going on my resume.

  • Corwin Christensen
    Corwin Christensen Month ago +1

    It will be interesting to see if the debris field actually changes orbit with such a small impactor/target mass ratio. The success is yes we can hit it. Whether it is good or not remains to be seen. This is also a little bit frightening as yes we can scatter a gravel meteorite, so now it will hit us thousands of little times instead of one big one ... but if each fragment does significant damage, now it's a worldwide impactor rather than a hemispheric or even regional one. Also going to be interesting to see if it re-congeals or stays scattered and how long it takes to do so. Hitting an object, just to have it re-assemble is not really productive.

  • Patrick
    Patrick Month ago

    Judging by it's pre and post tracking profile, before and after the impact. I believe Didymos was shifted to the right of its previous orbital course enough to label this DART mission a success.

  • Chris Carchrie
    Chris Carchrie 2 months ago +483

    Beautiful. So satisfying to see this ambitious mission complete successfully. Major props to all involved.

    • Great Ape
      Great Ape Month ago

      now if we can only stop dumb right wingers from having so many kids named Elon.

    • Gary Oldham
      Gary Oldham Month ago +1

      @Lai Soon Chong
      It's a head-on collision at high speed. There will be a change. How much change is yet to be seen but there will be some change.
      Didymos is half a mile in diameter. It's exerting enough gravitational pull to keep dimorphos locked in an orbit. Basically if you slow the smaller asteroid down it falls a little bit closer to the larger asteroid. The orbit will become a smaller circle. If you hit it from behind you would speed up the object by some amount. This would cause it to form a larger circle around the central object.

    • Lai Soon Chong
      Lai Soon Chong Month ago

      @Cade Lepski Exactly what I thought, look like the asteriod is still on it's course after impact

    • Fonzo
      Fonzo Month ago


    • anteshell
      anteshell 2 months ago +1

      @Mark Krützmann I think the Impact was Deep. :D

  • Pelican1984
    Pelican1984 2 months ago +8

    Watching spaceships millions of miles away in real time from my easy chair is...fabulous!

  • trm4life
    trm4life Month ago

    I'm curious about the debris from the rocket, like what was left behind, and what simply didn't survive and turned into space dust. Also wondering if it will have any long term effects over thousands, millions or billions of years. Or maybe we're so damn tiny, that it will have zero effect on our solar system.

  • Literally Shitler
    Literally Shitler Month ago +3

    I was excited for this mission when it was announced and like many others, waited patiently for it's journey these past several months.

  • Jason Murley
    Jason Murley Month ago +1

    In the news conference after the impact they said that the satellite still had a lot of hydrazine onboard when it impacted and that could add to the brightness of the dust cloud.

  • Philip Kudrna
    Philip Kudrna 2 months ago +399

    „The difference between science and messing around by blowing up asteroids is - writing it down“ Hilarious! Once again Scott at his best! 😂

    • Brad Hagemyer
      Brad Hagemyer Month ago

      That's like the only difference between an alcoholic and a drunk, alcoholics go to meetings 😋✌️

    • Gary Richardson
      Gary Richardson Month ago +1

      At least they didn't use a nuke like on films lol

    • Дмитрий Голик
      Дмитрий Голик Month ago +2

      Бросая в воду камешки, смотри на круги, ими образуемые; иначе такое бросание будет пустою забавою.
      Козьма Прутков

    • Lucian Alexandru Moţoc
      Lucian Alexandru Moţoc Month ago

      @escomag exaaactly

    • Lucian Alexandru Moţoc
      Lucian Alexandru Moţoc Month ago +1

      Oh so an asteroid is on a trajectory I don't like?
      Well, what if...
      "I reject your reality and substitute my own."

  • badri nair
    badri nair Month ago +2

    Thank you for such a detailed coverage . the cube stats did an amazing job as well.

  • Piers Storey
    Piers Storey Month ago +2

    Was a long late night watching live but so worth it. Serious hat tip 🎩 to the team 👍

  • Train 2noplace
    Train 2noplace 2 months ago +1

    This may yet prove to be the most important space experiment in the history of the world. Delightful imagery!

  • BoG
    BoG 2 months ago +2

    Totally insane! The planing and execution flawless! Loved the comment … difference between messing around and science is writing it down! Classic

    CHOOPS K 2 months ago +579

    Simply amazing that a telescope is able to see this.

    • Bill Padget
      Bill Padget Month ago

      Absolutely amazing that it was an 11 inch scope!

    • KJ McLaws
      KJ McLaws Month ago

      @Iain McClatchie that would be amazing. Putting high fps camera with high bandwidth transmission to the nearby probe to just spend however long sending it all back.

    • Fungoi
      Fungoi Month ago

      @grudzz 70lñl cell cell

    • C SH
      C SH Month ago

      @grudzz 70 Which is transmitting at about one kilobyte a sec, so we haven't seen anything from it yet.
      Maybe one frame a sec.
      Check that. This video has some from that....
      Gosh. I feel foolish.... God save the Queen.
      (He did, I am sure)

    • Limi V
      Limi V Month ago +2

      That pair of asteroids was chosen in part because they were going to be near enough to see with ground telescopes so it's not coincidence

  • Matt Phelps
    Matt Phelps Month ago

    Another great video Scott!
    A question for you: At the 6:09 point of your video, you show a clip from the Weizmann Institute, taken by the 11inch telescope at Neot Smadar.
    In this clip, Dimorphos is centered, and (in the opening frame) there is a bright star near the top of the frame, at an 11 o'clock position relative to Dimorphos. A bit below the bright star, and slightly to the left is a smaller point of light that is approximately at a 10 o'clock position, again relative to Dimorphos.
    During the course of the video, this smaller point of light appears to move to the right relative to the bright star, ending up directly below it by the time the video repeats. Any idea what this point of light is?
    My first thought was a satellite, but I dismissed that as the video is most likely much faster than real time. Another asteroid perhaps?
    Thanks for all the great videos!

  • Ezra Kirkpatrick
    Ezra Kirkpatrick Month ago +1

    I was watching this from launch to -impact- *lithobraking* and I was quite happy to see that we can start avenging dinosaurs.

  • nkr dinla
    nkr dinla Month ago

    I wonder how much static charge as well as magnetism (depending on how much iron, for example) might affect the path of ejected materials.

  • Benjamin Shafransky
    Benjamin Shafransky Month ago +1

    There is a common misunderstanding about the frames from the Draco camera and the actual impact site. Those frames were subframes of a lager pixel array in order to increase transmission rates. Long story short DART definitely impacted somewhere in that frame, however it is unlikely that it hid dead center on the frame shown. Source I'm a Lowell Discovery Telescope operator, we've been doing some of the ground based observing for DART. I have a bit more info that I can't exactly say publicly but, things have gone well ;D

  • Steve Walks
    Steve Walks 2 months ago +160

    Really nice work on putting together information from multiple sites and streams. Its quite incredible to watch.

    • Ottee2
      Ottee2 2 months ago +6

      Quite so. I very much enjoyed watching the livestream of the mission conclusion, but having Scott Manley provide this detailed addendum is a bonus.

  • Just a Guy, Ya Know?
    Just a Guy, Ya Know? Month ago +1

    Thanks for better coverage of DART than I've seen in any of my other nerdy Clip-Share subscriptions!

  • T[A]P Me!! To Have [S]EX With Me

    I worked the alignment team on DART doing all the pre/post metrology for the environmental testing. This one is definitely going on my resume.

  • Tim Jones
    Tim Jones Month ago

    From what I understand, the impact was about 7M miles from earth, however the satellite traveled for 10 months and about 400M miles. Can you explain / show the satellite’s actual path to impact? Thank you.

  • asailijhijr
    asailijhijr Month ago

    Did they have an estimate, before mission launch, of the amount of energy necessary to knock the moon out of lunar orbit? About what portion of that much energy was the strength of the impact?

  • Dragrath1
    Dragrath1 2 months ago +153

    The dynamics of that ejecta is fascinating glad we got the cube sat to catch that as without that we would have lost so much intricate detail! Its a shame we only have one up close vantage point given the high asymmetry of the impact ejecta which means out models will likely be incomplete but that is still far better than none.

    • Deipatrous
      Deipatrous Month ago

      electric universe nutcases will say its lightning bolts

    • Troy
      Troy 2 months ago +4

      I guess this is why impact craters on airless worlds often have rays of ejecta around them.

    • Chrispy_noza
      Chrispy_noza 2 months ago +5

      Cubesats are shining rn. Marco-A/B for redundant telemetry and now they get that vantage point.

    • Shawn H Corey
      Shawn H Corey 2 months ago +8

      The ejecta would be of different sizes and shapes. Those with less mass would be able to acquire a great velocity. Some of it would hit the larger chunks and be deflect into different trajectories. The larger chunks would also spin randomly, sending the small material out in chaotic patterns.

    • MRichK
      MRichK 2 months ago +21

      Licia Sat is still sending data it is very small so low data rate. So expect more pictures.

  • Ivy Mike
    Ivy Mike Month ago +2

    Any chance that debris field dispersal pattern is caused, in part, by magnetism? So hard to explain dynamic kinetics from a few disparate images. Great video Scott! I saw this streaming live and it was amazing. I was thinking ’why didn’t they send up a trailing recon vehicle to take HD video and capture particles for analysis’. Sounds simple enough, right? 😊

    • Uldis Barbans
      Uldis Barbans Month ago +1

      First thing that comes to my mind is that the pattern looks a lot like those macro slo-mo food ads. The more irregular shaped splash, the more salivating.

  • LionHawk
    LionHawk Month ago +1

    That was amazing, I was speechless after those last few frames! Then I see the words "Asteroid Smashing with Scott Manley"...I mean, can humanity be any cooler than we are right now? 😎

  • jack allread
    jack allread Month ago +1

    Scott, thanks for the update!
    At about 6:30 into the video there was another object moving left to right just above and to the left of the target. Any idea what that is? It moving relative to the other stars in the background .

    • earthling john
      earthling john Month ago

      Intriguing, and also an object to the lower right that seems to move as though following the asteroid

  • Parsias
    Parsias 2 months ago

    Thanks for all your insights. This one in particular is an exciting mission!

  • Marvin Kö
    Marvin Kö 2 months ago +168

    I did not expect to get that detailed photos of the approach. This was so incredibly tense, eerie, and plain awesome!

    • M Jeffries
      M Jeffries Month ago

      @Marvin Kö wrong again, no troll here. Thanks and you have a good day, too.

    • Marvin Kö
      Marvin Kö Month ago

      @M Jeffries It’s not defensive. But I think I know what your intentions are and I’m not one to feed trolls. So have a nice day

    • M Jeffries
      M Jeffries Month ago

      @Marvin Kö data chunks that had to be interpreted….no need to become defensive. CGI is needed to complete these processes.
      “It’s cgi, but it has to be.”
      - Robert Simmons NASA interpreter

    • Marvin Kö
      Marvin Kö Month ago

      @M Jeffries No, of cause not. The ones you speak of are cleaned up versions if I’m correct. Even the ones Dart sent were not “live” per se. As it takes minutes for the data to reach earth. Also the picture was taken and sent in chunks. Which had to be stitched together. So there are a bunch of asterisks to take if you want to.
      However if you were to imply that all pictures of Dart are somehow fake or fabricated, you would be very wrong

    • M Jeffries
      M Jeffries Month ago

      The photos say…
      “illustration of NASA’s DART spacecraft and the Italian Space Agency’s (ASI) LICIACube prior to impact at the Didymos binary system. NASA/Johns Hopkins APL/Steve Gribben/Handout via REUTERS”
      Are illustrations Live Photos?

  • Gabriel Fortin
    Gabriel Fortin 2 months ago

    Part of me was apprehending a very fluid impact due to minimal gravitational attraction and low density. I can't wait for better images to come out!

  • PurpleGlobeThistle
    PurpleGlobeThistle Month ago

    Amazing! Congratulations to NASA! I wish they could figure out how to take razor sharp real pictures in space. I understand the challenges must make it nearly impossible. But I much prefer looking a blurry real images then sharp "processed" illustrations.

  • Derek Wiffen
    Derek Wiffen 2 months ago

    Scot what were some of the numbers behind this in terms of energy and mass? Isn’t the change is the orbit likely to be in the range of seconds rather than minutes? Knowing a bit more of the science behind this would be pretty cool I watched this with a bunch of science students at school. They were kind of expecting to see the big explosion. I had to explain why we just saw the loss of signal. I thought it was pretty cool!

  • Patrick
    Patrick Month ago

    From what I can tell by looking at its pre and post tracking. It moved to the right of its line of travel. Therefore, I'm calling it a success.

  • Jim Chilton
    Jim Chilton Month ago

    My question is how much the mass of the moon changed after being hit. I get that the question is can we change the orbit of an asteroid; however, is it expected that over time all of the ejecta will find their way back to the moon or the parent? Are we talking about a significant percentage of mass (say more than 1%) lost to the system? Understanding that this is a question of dispersal, not nullification. Does the ejecta stay within the combined gravity well of the asteroid system? How much of this was a billiard ball break versus how much was it knocking the ball in the pocket? Like hitting a ball to knock on another (combo shot)?

  • Benjamin Shropshire

    How much scientific value would it have provide to be able to observe this from racially different angles? Did NASA look into using MRO's HiRISE camera (which is similar in size to the ATLAS telescopes) to get a perspective from Mars?
    Would there be any significant scientific value in kicking a few platforms like MRO (but built with astronomical telescopes and images sensors) into divergent solar orbits for future use? Simultaneous stereoscope observations would likely be the primary use (e.g. more quickly nailing down the orbits of new objects) but they could also be used to spot things that are too close to the sun from the earths perspective.

  • Chris Antoniou
    Chris Antoniou 2 months ago

    Another excellent video with great explanations, thanks again Scott! 👍🖖

  • akw77
    akw77 Month ago

    A fascinating experiment for sure. Astronomy just keeps getting more interesting (my hero was with Patrick Moore (RIP)). My question is - where did these amazing rocks come from? An exploded planet? Krypton??

  • trevcam6
    trevcam6 2 months ago +111

    As an earth-bound Engineer I find it incredible that NASA can zone in on that small target so far away. I wish I could get even close to that degree of accuracy.

    • Gregory Norris
      Gregory Norris Month ago

      @Nikolay Klimchuk I almost always reverse to park. My SUV has a great backup camera and I find it far easier to back in than to back out. Because of the camera I'm actually able to line myself up better and pulling out I can see the other idiots in the parking lot a lot better.
      On Topic, math is useless without good observations/accurate measurements. The most complex math we do also requires computers to get things done in a reasonable amount of time and with a reasonable certainty of accuracy (the more complex the math is the more likely a human will get tired and make a mistake) and those computers require a lot of math, measurements, trial, and error to get right. In Computer Science there's a phrase "Garbage In, Garbage Out" that really just applies to any math logical operations (logic includes things like if, then, not, AND, OR, NAND, NOR, XAND, XOR, and possibly some I've never learned before).

    • Shawn Elliott
      Shawn Elliott Month ago

      @eekee : As someone else said, it's still all just math. The fact that it's complex math doesn't make it something other than math.

    • Drez Sinclair
      Drez Sinclair Month ago

      Yeah it was fake first of all the Astroids are traveling fast and spinning with a debri trail this object looked like a toy model hanging from string I mean the moon landing of 1969 had better fake graffics than this

    • Phil Davenport
      Phil Davenport Month ago

      @Michael S Well, why not? If you listen to the Area 51 nutjobs, they would have us believe that the Roswell spacecraft allegedly retrieved there provided scientists with novel engineering such as fiber optics. Heinrich Lamm, who came up with a working example in 1930, wouldn't be amused.

    • Michael S
      Michael S Month ago

      @Rosyid Haryadi , no bullet does...

  • David Ridout
    David Ridout 2 months ago

    Very well done as always. Thank you, sir.

  • LJ Re
    LJ Re 2 months ago

    That was incredible. Thank you, Sir.

  • Mark Garin
    Mark Garin Month ago

    Interesting that once in a while, when satellites use the planets to speed up, that the action actually changes the orbit of the celestial object. Strange we haven't figured out how to capture a small asteroid, and fly one around a larger object to nudge it out of our way.

  • Florian Bösch
    Florian Bösch Month ago

    Strange thought popped in my mind. Rubble pile asteroids seem to be pretty common. Rubble can only form in a body of sufficient mass to heat up as it coalesces to melt the rock to a monolithic mass, and then get smashed to bits by impact. Is there more rubble in space than solar system evolution predicts? And if so, where does the rubble come from?

  • scotty moondog jakubin

    Can you even wrap your head around the mad math that went into this mission ? amazing !

  • David LaBedz
    David LaBedz Month ago

    A great mission and excellent follow-up images.

  • Abby The Abinator
    Abby The Abinator Month ago +1

    Thanks for the raw images and video of it. That's what really drives my curiosity for space and physics. The raw data and images. Details should always be explained when sharing such success. I believe anyways... some youtubers only get the general idea out and use artists impressions for their topic...
    Subbed and Im really looking forward to when new information comes out about this cause I'll be waiting for your next video.

  • Jeff Brinkerhoff
    Jeff Brinkerhoff Month ago +2

    Another great video.
    Re: nonlinear ejecta, to me the trails depicted demonstrate the influence of electric fields. Perhaps the differential of charge collected (due to motion)by DART and the target body.

    • room temp
      room temp Month ago

      The structures look like field lines in plasma to me too.

  • Kelvar
    Kelvar Month ago

    Mr. Manly could some of those structures (as in jagged lines of light) be electrical in nature??
    To me it seems to have characteristics of electrical activity.

  • Aeke E
    Aeke E Month ago

    Everything on this experiment shows an amazing technical expertise.
    But what I am quite curious is about the source for those boulders.
    They seems like of volcanic origin. The low gravity in all these asteroids in the belt could not produce such dense rocks. So, are most of the asteroids actually remains of a broken planet? Is this confirmed somehow? Any theories about what could make it break apart? Original size?

  • David Lock
    David Lock Month ago

    Hi Scott, excellent post as always. Do you know what the life expectancy of the "ride along" LICIACube sat is? Can we expect any more pictures from this of either Dimorphos or Diddymos? Or has it now flown by out of range?

  • Ron Shaw
    Ron Shaw 2 months ago +1

    Great explanation and video pictures, thank you Scott. 😊

  • John Paul
    John Paul Month ago

    What is the object with a retrograde motion, relative to Didymus, (6.18 minutes into the video)? It seems to be moving on its own path, it may be a perspective thing but did stand out for me. Great video, thanks.

  • Stephen Rivera
    Stephen Rivera Month ago

    Wow - very thorough! Thanks, Scott!

  • T Ray
    T Ray Month ago

    it seems to me that an increase in the size (mass and volume) of the debris cloud would mean a decrease in energy transfer to the momentum of the main body. also I'm curious to know the angle of impact in relation to the targets immediate trajectory. should the impact have caused it to accelerate its orbital velocity? decelerate? or did it hit it more perpendicular to their trajectory?

    • Nicegram me JessaSeewald
      Nicegram me JessaSeewald Month ago

      Thanks for watching 💚🏆 please telegram the username above let's talk 😊👆...

  • David O'Neill
    David O'Neill Month ago

    Human beings doing amazing stuff ,we need more of this !

  • Sabizos
    Sabizos Month ago +1

    I'm blown away NASA finally is taking meaningful asteroid proactivity. Gov. Programs are usually reactive and that is something we can't risk here.

  • Gerard Hammond
    Gerard Hammond Month ago

    Thanks Scott. a great summary. A fantastic mission well done NASA

  • Tuber Root
    Tuber Root Month ago

    Thanks. This is the most informative presentation I've seen so far.

  • Tempestive
    Tempestive 2 months ago

    This is awesome. And thank you Scott, for the update! I always turn to you first after such events.
    P.S.: forgive my pedantism, but I believe you might have meant "hypothesis" at 8:00 :P

  • Sylak
    Sylak 2 months ago +33

    This was so amazing. My brother watched that with his kids too, they were mindblown. I did not know they would have live image from it, I was not planning to watched originally, just watching people in a control room is a bit boring, but I tuned in anyway and was pleasantly surprise we ha live feed! it was the second coolest live feed after the perseverance landing!
    the delay was in the 30s second , I think the asteroid being over 11 millions kms away. quite of a short delay.

    • Ottee2
      Ottee2 2 months ago +3

      Absolutely. I'm sitting on my LazyBoy, thinking, WoW, this is in near realtime! Meanwhile, the arsehats on the comment board for the channel I was watching, are calling it, 'fake'.

  • Sephtis
    Sephtis 2 months ago

    I wonder if attaching a thermonuclear device to future asteroid redirect mission could significatnly imrove redirection by vaporizing a large amount of surface material, making it push the asteroid more by means of the rocket principle?

  • Steve Minard
    Steve Minard Month ago

    Can you add information on what direction the impacting craft is travelling in the external views. At first I thought it looked like Dimorphos was completely blown apart. But it could also be that the debris was just erupting from the impact site. Knowing what side the shot came from makes all the difference. At only a few acres in cross section and almost no gravity I could imagine that the former asteroid is now just a debris field.

  • Dragon12792
    Dragon12792 Month ago

    Amazing video Scott. I watched nasaspace flights livestream of the event. This was a really cool experiment.

  • Blake Call
    Blake Call 2 months ago

    I’ve been waiting on Scott to make a video on this. I watched it live and was astounded. Totally amazing!

    • Jeff Kaylin
      Jeff Kaylin Month ago

      I watched the live also (the last 2 minutes until impact), and was disappointed that I heard no mention of the observer craft. So I was hoping Scott would clarify it, and he did!

  • Sneaky Fox
    Sneaky Fox 2 months ago +60

    I also watched it live, but as spectacular as it was, I will be in suspense until Nasa tells us how much the DART impact changed Didimoon's trajectory and velocity. And the weight ratio between them.

    • Sneaky Fox
      Sneaky Fox Month ago +4

      @cheddar2648's Artisan Cheeses Sure. But still I'd like to hear if and how much they succeeded in changing the orbit, out of curiosity.
      But it's not always possible to predict (especially) long period comets' trajectories since they influence each other and are influenced also by the Solar wind and the pull from (some of) the planets.
      So occasionally, an appraoching comet would have to get hit quite hard at a late point in time because it would hit Earth f.x. just half a year after a local impact sent it towards us.

    • cheddar2648's Artisan Cheeses
      cheddar2648's Artisan Cheeses Month ago +6

      Detection is the key. If you detect an impactor years out, the smallest nudge will create a miss. The closer to impact and the heavier the impactor, the more unlikely it is to divert it. This is why long period comets are terrifying; solar system is surrounded by a hypothetical shell of icy bodies waiting their turn.

    • bokiNYC
      bokiNYC Month ago +3

      Same here 👍

  • Danielle Hirschausen
    Danielle Hirschausen 2 months ago +1

    Never in my life did I expect to see ,some thing as magnificent by humans achievement !

  • Jeff Samuelson
    Jeff Samuelson Month ago

    It seems to appear that when DART hit the rubble pile that is loosely held together by micro-gravity, it was like a cue ball breaking up a cluster of pool balls. The streaks would likely be from dust being distributed from the ejection of larger boulders. I would surmise that the little moon Dimorphos may be no more.

  • caret_shell
    caret_shell Month ago +1

    Thanks for these really timely updates - with this video, and your recent Max Q Abort video, I feel like I'm learning about interesting things going on in space as they happen, and unlike a mainstream news report, these videos are all thriller, no filler.

  • Wes Chilton
    Wes Chilton 2 months ago +1

    I had to stop and remind myself that I was watching a livestream over the internet from a spacecraft 7 million miles away in near real time. I grew up in the time before personal computers, CDs, cable, internet and even color TV for a decade of my life. I was 3 when the Apollo 11 landed on the moon. We have come SO FAR and yet the boundaries are expanding and it seems we still have such a long way to go. Its an incredible time to be alive!

  • Mraven Cross
    Mraven Cross 2 months ago +53

    As always your presentation and conclusion are so amazing 👏 you give us the info without treating us like children. Thank you so much

    • Slevin Channel
      Slevin Channel 2 months ago

      Just like 'Some More News', but he does Politics and General-Problems (like Droughts
      and the Prison-System) instead of Science.