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NASA is deliberately smashing an asteroid in the name of planetary defense

The Double Asteroid Redirection Test spacecraft will deliberately crash into a near-Earth asteroid to try and knock it off course. Scientists at NASA and Johns Hopkins Applied Physics Laboratory hope the DART mission could help us save Earth from a catastrophic impact. Read more about the DART mission here: Watch the launch livestream here: Subscribe…

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The Double Asteroid Redirection Test spacecraft will deliberately crash into a near-Earth asteroid to try and knock it off course. Scientists at NASA and Johns Hopkins Applied Physics Laboratory hope the DART mission could help us save Earth from a catastrophic impact.

Read more about the DART mission here:
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134 Comments

134 Comments

  1. Komi-San Supremacy

    November 22, 2021 at 3:02 pm

    Imagine hitting it and the changed the trajectory to hitting earth

    • BladeR

      November 22, 2021 at 3:33 pm

      I was thinking the same. if then, we are doomed

    • Jameel Ja

      November 22, 2021 at 4:16 pm

      Lol… I thought the same thing.

    • Jameel Ja

      November 22, 2021 at 4:17 pm

      @BladeR no we aren’t doomed if that happens. That’s when we’ll train some oil rig drillers to become astronauts and then go nuke it. Lol

    • Crystal Lett

      November 22, 2021 at 6:41 pm

      From the moment months ago I was worried abt this “test”…notice they Never mention this risk as they report on it!

  2. Jarid Gaming

    November 22, 2021 at 3:51 pm

    Its also Humanity responsibly as Earths only Intelligent Species to ensure the survival of all other Species and our Planet.

  3. christian crow

    November 22, 2021 at 3:53 pm

    I’ve seen several people report this but somehow I can understand you so much better

  4. J-culture ENT

    November 22, 2021 at 4:01 pm

    Now why would anyone want to do that

  5. froztezeus

    November 22, 2021 at 4:15 pm

    .

  6. musto lourien

    November 22, 2021 at 4:27 pm

    Hope it won’t change its trajectory to earth.

  7. fleipeg

    November 22, 2021 at 4:32 pm

    What could go wrong?

  8. Vitus Yu

    November 22, 2021 at 5:07 pm

    Interesting! Hope to have links showing more details behind the APL project here.

  9. Kane III

    November 22, 2021 at 5:27 pm

    Or they could deflect an asteroid to deliberately hit earth as with Destroyer.

  10. Nubbs McFarkle

    November 22, 2021 at 6:43 pm

    Can’t wait for the official, after the fact “oops”…

    …press release.

  11. Dave Roberts

    November 22, 2021 at 7:15 pm

    Practice for 2029 … Apophis.

  12. Ivan Ochoa

    November 22, 2021 at 8:08 pm

    Great company developing this technology they do a lot of work with nasa and guiding systems they use. $RDW Redwire

  13. Claire Reilly

    November 22, 2021 at 9:31 pm

    I won’t lie, describing it as ‘a golf cart crashing into the great pyramids’ definitely made me want to see this even more! (And don’t worry, when they knock it off course, Dimorphos will still maintain its orbit around the larger Didymos asteroid, so it won’t suddenly come hurtling towards Earth!)

    • Crystal Lett

      November 23, 2021 at 4:51 am

      That’s comforting!

    • L Nev

      November 23, 2021 at 5:32 am

      You shouldn’t have clickbaited the title of this video like that. It’s misleading and panders to a population of conspiracy theorists and people who are already living in apocalyptic dread. It takes away from the hard work of the people behind this mission and what they are actually doing. That’s why you’re getting a thumbs down from me.

    • Towelie Durden

      November 23, 2021 at 2:05 pm

      @L Nev she is “not gonna lie”, she doesn’t care

    • Karl Brown

      November 23, 2021 at 5:43 pm

      🏴󠁧󠁢󠁥󠁮󠁧󠁿🇬🇧🌹😍

    • YT Reflect

      November 24, 2021 at 3:28 am

      So will it destroy earth when is it going to hit

    • All Day Adventures

      November 24, 2021 at 10:11 am

      When Picard saved a distant planet from an asteroid, it was the technology in Jordies visor that saved the day…!

    • FreakyDemigod

      November 24, 2021 at 5:07 pm

      but you do…

    • Walid Algorafi

      November 25, 2021 at 3:22 pm

      May be it will pass near the earth and you will make it crash into earth ,,you may cause disaster like you do as usual ,,

    • Anthony Paura

      November 26, 2021 at 8:02 am

      At this point there just playing with it ,and maybe they can hit it towards us

    • Redcoat‘s Renaissance

      November 27, 2021 at 8:51 am

      The point is the larger mother asteroid Didymos will have its course slightly changed through the perturbation of its satellite Dimorphos thru the collision. Didymos was no danger to the Earth and now within the next few years it will be. They should have left well…alone or at least better surveyed these asteriods before smashing into them. Are we sure they didn‘t include a nuke in the package…would they even tell us?

    • toasterinthetub

      November 29, 2021 at 5:16 pm

      @L Nev who cares lol and not everyone is a “conspiracy theorist” like cnn says go touch some grass

  14. kthmtchll

    November 22, 2021 at 10:37 pm

    ‘try and save’?

  15. Gary Hislen

    November 22, 2021 at 10:38 pm

    This isn’t new..the enlightenment ones have been doing this for years..zzzzzzz

  16. Christopher Summers

    November 22, 2021 at 10:57 pm

    NASA 1962: we must land a man on the moon by the end of the decade
    NASA 2021: we just tryna smash, yo

  17. Uzair Ahmad

    November 22, 2021 at 11:08 pm

    For YouTube likes and views.

  18. David Jamgochian

    November 22, 2021 at 11:25 pm

    the other hand

  19. Ronan

    November 22, 2021 at 11:38 pm

    You need Saitama

  20. louis chua

    November 22, 2021 at 11:51 pm

    How is this different from what the russians recently did? Wouldn’t this also create space debris?

  21. Red Dwarf

    November 23, 2021 at 12:00 am

    Oops, the test asteroid ☄️ is now heading straight for Earth 🌍 😂

  22. Bruce Nitroxpro

    November 23, 2021 at 12:03 am

    When will we be able to know when and if this works? What should we search for when we do?

  23. NOEL BRYANT

    November 23, 2021 at 12:24 am

    and if it doesn’t work give Elon billions more, he knows we’re all doomed , not that any of us drone slaves will be saved , we must work for the new masters

  24. Enrique Bonilla juanteddy1234 Beast Holding birds!

    November 23, 2021 at 12:25 am

    I am scared…😰😰

  25. Manyrounds

    November 23, 2021 at 1:27 am

    How galactically stupid, what will be the effect on the bigger asteroid it revolves around? These are the same guys who thought up nuclear power on warships that are inherently big slow moving targets in the activity they participate in, and other smart stuff they think is a good idea. These are the smart guys people.

  26. Glenn Boyd

    November 23, 2021 at 9:03 am

    It’s very wrong to take ur first driving lesson in 2 cars. With a binary system, any thrust U attempt of the asteroid, will be affected by the moonlet it orbits. Akin to playing billiards ricocheting 3 balls instead of 2. A slight error of aim will magnify it’s wrong course.

  27. Wolf Coalition

    November 23, 2021 at 9:11 am

    What if they goof and cause the astroid to crash into the earth?

  28. Nibiru nonsense

    November 23, 2021 at 9:28 am

    The asteroid sun near earth

  29. Philip Mccullagh

    November 23, 2021 at 12:00 pm

    As long as they don’t redirect the asteroid towards the Earth

  30. NAzz TheHitMaker

    November 23, 2021 at 12:17 pm

    Of course. No pun intended

  31. Question everything Always

    November 23, 2021 at 1:22 pm

    Ohhh yes we’ve all seen how good your modelling is.
    Can’t even get a cold right but you wanna play with space rocks?
    Righto.

  32. The BOTulist

    November 23, 2021 at 1:56 pm

    Man playing GOD, hahaha carry on…!

  33. Towelie Durden

    November 23, 2021 at 2:04 pm

    What is this 14 year old girl trying to tell me about steroids?

    What

    I don’t know what’s going on…Wanna get high?

  34. Russell Ricks Books

    November 23, 2021 at 3:23 pm

    I doubt the spacecraft would make any difference

  35. Lyman G Phillips

    November 23, 2021 at 3:29 pm

    Click Bait-iest title of they day. CNet deserves coal in their stocking for this one.

    • L Nev

      November 23, 2021 at 11:12 pm

      At least the comment section is entertaining while I wait for the live premiere event. My brother worked on this for years and we are thrilled to see this happen

  36. jamie turnage

    November 23, 2021 at 3:59 pm

    good luck

  37. 平和

    November 23, 2021 at 4:39 pm

    Interesting

  38. Talith Gaming

    November 23, 2021 at 5:12 pm

    Let it hit

  39. Bailey Aitchison GTA FAN

    November 23, 2021 at 5:23 pm

    You know what a good idea? If alien invasion start we cloud use this weapon on them

  40. Kiki Mugi

    November 23, 2021 at 5:52 pm

    It seems likely this is being done to test possible outcomes for an upcoming significant imminent event.

  41. AmirGaming1995

    November 23, 2021 at 5:54 pm

    Are Earth 100% safe?

  42. D Plant

    November 23, 2021 at 6:12 pm

    Let’s get the president on board, I’m sure that will save the planet.

  43. ndosh1man

    November 23, 2021 at 9:38 pm

    I see that NASA went to Marvel’s school off naming acronyms.

  44. touhouguyII

    November 23, 2021 at 10:04 pm

    And then redirects that asteroid to earth

  45. Brady Figueroa

    November 23, 2021 at 10:21 pm

    They’re going to regret this, we gon die and once again man made

  46. Dll Myt748

    November 23, 2021 at 11:55 pm

    Alien are luring all nation busy flatingnon earth. And yet they went to other direction to release bomb on earth. They has been invading to all nation intrude without consent. And they shoot bomb on earth please

  47. Alexander Nev

    November 24, 2021 at 12:17 am

    Tomorrow headline…. New York City Destroyed by NASA Botched Asteroid Deflection

  48. Reese

    November 24, 2021 at 1:24 am

    please hit the earth im tired of this planet

  49. Ranzi Photography

    November 24, 2021 at 12:43 pm

    Plot twist: its an alien space ship

  50. White Island Horror Shows

    November 24, 2021 at 12:49 pm

    What is a Killometer?

  51. frankiedread

    November 24, 2021 at 12:59 pm

    Nice content but jarring (comic strip) makeup hair colors.

  52. J W

    November 24, 2021 at 1:09 pm

    Asteroids hiring earth disproportionately affect woman most. It is in a un report I read

  53. JimiRay

    November 24, 2021 at 1:14 pm

    What if Dart actually made the asteroid turn towards Earth???

    • abdul latiff

      November 24, 2021 at 3:38 pm

      Hrmmm so It will fall at america..hopely..

  54. stevee c

    November 24, 2021 at 1:31 pm

    This is not a test lol This asteroid is way larger and way closer than we’re being told I have pics. fact

  55. J G

    November 24, 2021 at 1:46 pm

    nasa your arms are too short to box with God

  56. Alf Fa

    November 24, 2021 at 2:25 pm

    That asteroid will end up coming to the planet to seek it’s revenge. It’s the start of a sci-fi movie xD

  57. kevin Becerson

    November 24, 2021 at 2:49 pm

    I love CGI, and hate scary looking women.

  58. rtz hsghu

    November 24, 2021 at 2:50 pm

    Why do I keep hearing OOUPS?!

  59. Ryan Seslar

    November 24, 2021 at 4:23 pm

    I hope it fails I wouldn’t mind having the asteroid hitting Earth that way we can wipe out mankind all together and civilization all together

  60. Soupbone 10 olgathecat

    November 24, 2021 at 4:48 pm

    Look ,the world is in trouble, there is a real meteor that’s heading towards Earth! The truth is they are trying to stop it now! If this doesn’t work we have around 1 month left ! Pray!

  61. Scott Richards

    November 24, 2021 at 4:53 pm

    Yes they say we have nothing to be concerned about as the asteroid is not on course to hit Earth but what if they nudge it and put it on course lol.

  62. Jose Ramon

    November 24, 2021 at 5:04 pm

    What if they send it are way????

  63. FreakyDemigod

    November 24, 2021 at 5:06 pm

    Yeah… for sure😅…
    al lies..
    Theres no asteroids..

  64. Baldemar Sanchez

    November 24, 2021 at 5:57 pm

    But doesn’t the smaller asteroid also effect the bigger asteroids orbit? Wouldn’t it’s own orbit be affected?

  65. Juan Carlos

    November 24, 2021 at 6:31 pm

    NASA only serves to lie to the people and cheat money from citizens

  66. TAK Ism.

    November 24, 2021 at 7:25 pm

    would be ironic if the orbit changes to hit earth :D.

  67. hhhfff

    November 24, 2021 at 8:48 pm

    when you do this experiment, please, dont record it, and show actual live footage, just render it in cgi. or even just cartoon please!!

  68. Tom Meyers (PDF)

    November 24, 2021 at 10:52 pm

    NASA is deliberately smashing an asteroid in the face.

  69. Charming Anarchist

    November 25, 2021 at 12:11 am

    Keep the jokes coming!! “But nearly 66 million years ago, as you may recall…”

  70. On Site Electrician Scott

    November 25, 2021 at 1:23 am

    Ok so like what happens when this causes some kind of space nuke and disrupts the belt , and it starts slinging astroids at the moon and earth and crack the moon and the world goes crazy because the moon controls everything, well it’s too late now . Good bye to all. NASA sucks . And both of these scientists in this video need donations for nose jobs.

  71. Mutia tun

    November 25, 2021 at 1:25 am

    what if they’re wrong, what it that asteroid is friendly and try to say hi

  72. Kerrie Krzywopulski

    November 25, 2021 at 1:38 am

    (Christopher Conway ) fools it’s bad enough the planet is rotting

  73. Primitive and Beyond

    November 25, 2021 at 3:12 am

    It’s like throwing a cigarette at a car expecting it to move

  74. Dat Meme

    November 25, 2021 at 6:50 am

    Great cover story to keep people from panicking about what is coming our way. This might not be a test.

  75. joel brown

    November 25, 2021 at 1:53 pm

    Our luck it gets knocked into a not so favorable orbit. Then smashes into us!

  76. chuck hartey

    November 25, 2021 at 2:23 pm

    Might as well get rid of the whole asteroid belt while we’re at it then we can work on moving the andromeda galaxy out of the way

  77. Table Chairs

    November 25, 2021 at 2:30 pm

    I hope I’m wrong BUT this can go bad I will give in percentage terms a 60 % bad 40 % good

  78. Walid Algorafi

    November 25, 2021 at 3:19 pm

    If huge only in dreams or movies ,,

  79. MLAustin5

    November 25, 2021 at 3:33 pm

    Hahahahahaha

  80. paulrichards009

    November 25, 2021 at 3:45 pm

    We should give THANKS unto The Lord who has been protecting this earth from such catastrophe for thousands of years. Instead of giving thanks, we are going to try to deal with this ourselves….
    KJV Colossians 1:16-17
    16 For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him:
    17 And he is before all things, and by him all things consist.

  81. girasol

    November 25, 2021 at 3:52 pm

    2020: 😷
    2021: 👹
    2022: ☠️

  82. X FOXTROT WISKEY KILO

    November 25, 2021 at 4:41 pm

    Sure they are . . .

  83. Theresa Dailey

    November 25, 2021 at 10:17 pm

    Their not 100% sure this will work.

  84. Hoan Nguyen

    November 26, 2021 at 4:17 am

    Indeed, when the US deflects the flight of a celestial body in order to prevent the impact with the earth,
    This redirecting orbit of a celestial body also changes the gravitational force system in the universe! This is good or bad no one can predict…

  85. viswagnya

    November 26, 2021 at 5:00 am

    Elon Musk Where you at?

  86. Woodburck Noe

    November 26, 2021 at 5:51 am

    Thank you for sharing such vital information. Every effort, and data makes a difference.

  87. 1010109999999

    November 26, 2021 at 9:17 am

    Why do I have a feeling 50 years from now they will be telling us this was not a test

  88. cordless

    November 26, 2021 at 1:36 pm

    Hope it hit us

  89. admine chitti

    November 26, 2021 at 7:23 pm

    USA like cheat every time superhero

  90. Cyan Kirkpatrick

    November 26, 2021 at 7:29 pm

    I do believe that Never a straight answer admin thinks that one size fits all situations.😅😜 yeah keep thinking that never a straight answer admin.

  91. Craig S

    November 26, 2021 at 11:13 pm

    LOL Space, Another fairy tale to keep the crowds amazed.

  92. Tye Ransom

    November 26, 2021 at 11:22 pm

    So are they gonna push it into the sun or push in further into space?

  93. COMMANDER of the NORTH

    November 27, 2021 at 2:04 am

    The trust I have in this Government is its on its way in ,and if the nudge don’t work guess what ,

  94. Arterran Renewables

    November 27, 2021 at 2:05 am

    Plot twist. Asteroid course change works but re-directs asteroid towards Earth.

  95. Raptor 101

    November 27, 2021 at 2:47 am

    Smart idea i hope it works

  96. Daniel brian

    November 27, 2021 at 3:23 am

    You would think with all the money in the world , we would have better defense against an unknown enemy

  97. Daniel brian

    November 27, 2021 at 3:24 am

    And all that junk they make to , lesson our ozone , Horrendous

  98. udit sahu

    November 27, 2021 at 7:19 am

    999 likes🤣

  99. Redcoat‘s Renaissance

    November 27, 2021 at 8:00 am

    Foolish to play experiments with an asteroid that does pass close to Earth, just a wobble of the small orbiting partner could make the larger mother asteroid change course to collide with Earth. Foolish game and arrogantly assuming their simulations will get it perfectly right, they don‘t know the density variation, geology and fracture characteristics of the target. As always with data…garbage in…..garbage out! We may have 2 years only to figure how to do this right after this self destruction mistake 🥺😞 They won‘t tell they screwed it up….so…for political reasons….you won‘t know it until its too late.

  100. DupageDragonsFan94

    November 27, 2021 at 10:15 am

    The same organization (i.e. NASA) that supposedly goes to great lengths to avoid contaminating other worlds with earthly microbes is the same organization that habitually crashes spacecraft into other worlds (remember the moon, Saturn?). Go figure.

  101. Mar ichikawa

    November 27, 2021 at 11:56 am

    All we need are the xmen. Jane would just simply look at it and it will fly away

  102. Layla Z

    November 27, 2021 at 1:07 pm

    What about the debris from the broken satellite?

  103. johnnyloner

    November 27, 2021 at 5:58 pm

    What if crashing into it makes it spin, and then the course will slowly change…?

  104. undertale lover

    November 27, 2021 at 6:00 pm

    I wonder if by experimenting crashing into asteroids can actually disrupt them even more becoming more of a threat to us?? But its a wonderful thing how nasa is at least trying!

  105. Aquarian Light

    November 28, 2021 at 12:51 am

    An astroid will be dangerously close to earth in 2029 and they know this…not telling the public

  106. S

    November 28, 2021 at 5:28 am

    If God has willed and it will definitely happen and no one can stop it

  107. Blake Clarkson

    November 28, 2021 at 5:59 am

    So they created a $330million bomb, which they first built on earth putting us all at risk, without even asking for the publics opinion??? Then they launched this waste of money at a rock in outer space, all while people are sick and starving, among many other more immediate threats on earth??? Yeah, sounds about right!!! That’s why you don’t put corporations in charge of our space programs!!!

  108. Phúc Trịnh

    November 28, 2021 at 6:45 am

    Have they consdiered the chain reaction

  109. Radix Reuel

    November 28, 2021 at 6:53 am

    Why is this still not consoling.
    Is this another sponsored Soros project 💥

  110. Guro Turo

    November 28, 2021 at 7:28 am

    then the redirected asteroid hit another asteroid altering its former harmless direction into a direction toward earth.

  111. CertoCerto

    November 28, 2021 at 7:33 am

    So coooool

  112. steven ali

    November 28, 2021 at 11:37 pm

    What is the speed of the asteroid

  113. kendra smith

    November 29, 2021 at 12:27 am

    Space is a lie…see Genesis…we are in an enclosed earth…The little g god of this world, for now, satan, is a liar, and the father of lies…run to the ONLY One Who can save you, JESUS, the only begotten SON of God, don’t put your faith and trust in man, who cannot save you, call upon the NAME of the LORD JESUS. Romans 10:9-10 9That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. 10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation….

  114. Tiffany Smith

    November 29, 2021 at 5:41 am

    Ok seriously? Deadly plague, climate change, now an Eiffel Tower sized asteroid, just let the apocalypse happen!!! Clearly something is trying to kill us off

  115. HorribleBro07

    November 29, 2021 at 4:59 pm

    Yeah I don’t think that will work , i mean the astroid they are trying to test on is too big to be moves by a satellite , secondly its momentum will be way way too big as compared to satellite moving at speed of light

    • toasterinthetub

      November 29, 2021 at 5:22 pm

      Well they want to see how it reacts and w that data they could coke up with how big they would to make the next one or if it needs more momentum etc

  116. Sundarrajan Iyengar

    November 29, 2021 at 10:08 pm

    But this could also mean govt are hiding facts from the planet that there is global killer asteroid coming our way and we have launched counter measure…if this fails they may announce the true facts…

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