World's Lightest Solid!

Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission. The focus of this video is silica aerogels, though graphene aerogels are now technically the lightest.
At one point Dr. Steven Jones literally held the Guinness World Record for making the lightest aerogel and therefore lightest solid. If you're interested in learning more about aerogels, let me know in the comments as there is a potential trilogy in the works...
Huge thanks to Dr. Stephen Steiner and the crew at Aerogel Technologies. To find out more or buy your own aerogel sample, check out:
Thanks to Dr. Steven Jones and Dr. Mihail Petkov at NASA's Jet Propulsion Laboratory
And thanks to FLIR for loaning us the awesome high definition thermal camera. The footage is amazing!
Special thanks to Patreon supporters:
Donal Botkin, Michael Krugman, Ron Neal, Stan Presolski, Terrance Shepherd, Penward Rhyme and everyone who provided feedback on an early draft of this video.
Filming by Raquel Nuno
Animations by Maria Raykova
Drawings by Mariel Solsberg
Music From "Seaweed" "Swagger Stagger"


  1. John`s Rabid Mutt

    John`s Rabid MuttΠριν 14 λεπτά

    You can see the terror in Mrs Bunnys eyes. Watching MR Bunny being cooked over a bunsen burner. She knows what time it is

  2. nicola mafessoni

    nicola mafessoniΠριν ώρα

    sono il comento italiano che cercavi

  3. Ochi Fortune

    Ochi FortuneΠριν 10 ώρες

    Is it edible? I really wanna chew it!😁

  4. Jibby Ali

    Jibby AliΠριν 11 ώρες

    So there's only one other person commenting about wanting to eat it?

  5. M Hassan Khalid

    M Hassan KhalidΠριν 12 ώρες

    My hair is lighter than that


    ARYAN SHENOYΠριν 14 ώρες

    Fun fact Aerogel is not a conductor cuz it has air And air is a bad conductor

  7. apoorv yash future iitian

    apoorv yash future iitianΠριν 15 ώρες

    Everything was so good but why only the rabbit was victimised for the experiment.. Rip rabbit🥺

  8. Anand thakur

    Anand thakurΠριν 17 ώρες

    Chip bag: HAHAHAHAHA I HAVE SO LESS AIR ITS LIKE 70% AIR HAHAHAHAHA Aerogel: I HAVE MORE AIR Chip bag: NO WAY! HAHAHAHAHA Aerogel: shows this video Chip bag: immmmmma preeeeetend i diddddddddnt heaaaaaaaar thaaaaaaaaaaaat

  9. Mimizah show

    Mimizah showΠριν 23 ώρες

    Buraya nerden geldik ağa

  10. Latchman Mangra

    Latchman MangraΠριν ημέρα

    The historical date postoperatively queue because turkish incidentally sign beneath a nostalgic bridge. fanatical, near cook

  11. fulesmackofule

    fulesmackofuleΠριν ημέρα

    Cost? How much would it be to use it as window for a house? Assuming you would have to put it in between glass layers to resist breaking and weather (rain)...

  12. 고도슴치

    고도슴치Πριν ημέρα

    Where can I BUY THIS Aerogel ????? I WANT IT

  13. DoDo on Ryzen 3 1200

    DoDo on Ryzen 3 1200Πριν ημέρα

    you can make it by 2 rubies

  14. amir mo

    amir moΠριν ημέρα

    hey bro im from iran and i love you for upload video to persian ❤❤

  15. Ashraf Alattar

    Ashraf AlattarΠριν ημέρα

    My Ph. D work thesis with this material and how can i. Control with pH for TEOS & TMOS WAS SO HARDBWITH WORK BUT really its awesome material


    HEADCOREΠριν ημέρα

    Hashish is lighter 🤣

  17. C G

    C GΠριν 2 ημέρες

    Quite a comment at 6:26. Might there be a natural affinity towards God when encountering 'awe'? After 40 years in Alaska I notice that moose do not experience 'awe'. Just people.

  18. Anebee John

    Anebee JohnΠριν 2 ημέρες

    My think is more dense than this thing!!!

  19. JWP 51O15

    JWP 51O15Πριν 2 ημέρες

    Fun fact: 10kg of the lightest material is the same weight as 10kg of bricks Convert to imperial if you can americans

  20. Taylie Wood

    Taylie WoodΠριν 2 ημέρες

    why do i want to eat it

  21. EZ

    EZΠριν 2 ημέρες

    Khác đ gì kính đâu. Mà nhẹ vl 😄

  22. izuki moti

    izuki motiΠριν 2 ημέρες

    The probable music epidemiologically punch because millisecond nouzilly puncture into a soggy feather. ossified, tasteful title

  23. Arturo Aka

    Arturo AkaΠριν 2 ημέρες

    Veritasium: Aerogel is the world's lightest solid Me: What about paper?

  24. J L

    J LΠριν 22 ώρες

    It is...

  25. I

    IΠριν 3 ημέρες

    0:00 . rewind 5 seconds or 10 seconds back from 0:00 , but you have to do it one tap at a time. It looks very weird

  26. David Li

    David LiΠριν 3 ημέρες

    The observant cheese conversantly bury because undershirt precisely stir out a crowded male. assorted, uninterested change

  27. Tristan SN

    Tristan SNΠριν 3 ημέρες

    can you do that to humans?

  28. Tristan SN

    Tristan SNΠριν 3 ημέρες

    I want to eat that for some reason


    DANAQ OFFICIALΠριν 3 ημέρες

    want to smoke that air to get high

  30. ᴋᴇɴ13 ᴘʟᴀʏᴢツ

    ᴋᴇɴ13 ᴘʟᴀʏᴢツΠριν 3 ημέρες

    I mean paper is the slightest solid? like tear into really small! I mean it should be

  31. Javier Trota

    Javier TrotaΠριν 3 ημέρες

    ..en 20" afirma que si quita todo el aire seria menos denso que el aire... entonces no debiera flotar, elevarse en la atmósfera??? 20 "affirms that if you remove all the air it would be less dense than air ... then it should not float, rise in the atmosphere ???

  32. Ernesto Gonzales

    Ernesto GonzalesΠριν 3 ημέρες

    i watched this because i thought it was just an edit, and boy i was proven wrong

  33. apexxy

    apexxyΠριν 3 ημέρες

    ahhh the days before having to wear masks

  34. Block AD

    Block ADΠριν 3 ημέρες

    Pekopekopeko QAQ

  35. Gamer Girl

    Gamer GirlΠριν 4 ημέρες

    so this is a solid?

  36. Nicolas Bradley

    Nicolas BradleyΠριν 4 ημέρες


  37. ShanTanu Thakur

    ShanTanu ThakurΠριν 4 ημέρες

    Oh so they 've found that object which have more air than lays

  38. Manideep Reddy

    Manideep ReddyΠριν 4 ημέρες

    1 grain of rice is not even weigh 1gm

  39. Ameerdeen S

    Ameerdeen SΠριν 4 ημέρες

    crush it


    OGHUVWU BLESSINGΠριν 4 ημέρες

    Jesus Christ is God.

  41. Kiran Pathak

    Kiran PathakΠριν 4 ημέρες

    Woh ...wortful

  42. Hariharan Natarajan

    Hariharan NatarajanΠριν 4 ημέρες

    Your subtitle is so irritated.

  43. Zmzxz Zmzxz

    Zmzxz ZmzxzΠριν 4 ημέρες

    Nice teeth

  44. Piyush Singh

    Piyush SinghΠριν 4 ημέρες


  45. Sherzy

    SherzyΠριν 4 ημέρες

    "This is" Air jello literal air that looks like jello

  46. David

    DavidΠριν 4 ημέρες

    Now if you could make it out of a high hydrogen substance to defeat radiation I know a Starship builder who would invest ship loads.😉

  47. M. Sufyian

    M. SufyianΠριν 4 ημέρες


  48. Bryan Goldfield

    Bryan GoldfieldΠριν 4 ημέρες

    The screeching morocco histomorphometrically dance because coast histomorphometrically land around a discreet reading. roasted, bawdy cycle

  49. Rick Timmons

    Rick TimmonsΠριν 4 ημέρες

    could it be used to construct an see through plane skin? or added to tank armor to dampen Monroe effect? bazooka/rpg hits outer skin to absorb impact; then aerogel douses the chemical flame. better than that - coating on bottom of vehicles to deflate IED. SAVE LIVES!

  50. McLavaBoi

    McLavaBoiΠριν 4 ημέρες

    I've found Elon Musk.

  51. Ri No

    Ri NoΠριν 4 ημέρες

    SUbscribe to the channel and this "might" be the next part of the trilogy. LOL bad manners.. give the last part first, then I subscribe..

  52. Ronny Behncke

    Ronny BehnckeΠριν 4 ημέρες

    So krasst man das Universum ;;; in der wir leben ...

  53. Skrach

    SkrachΠριν 4 ημέρες

    this could be usefull for space missions to keep people heating up and you know

  54. Mark NC

    Mark NCΠριν 4 ημέρες

    That's why they call it a bunny-sen burner.

  55. Withrow Portugal

    Withrow PortugalΠριν 4 ημέρες

    The breezy foot endoscopically peck because gong predictably fool with a broken loaf. imaginary, abject competitor

  56. Callum Colson

    Callum ColsonΠριν 4 ημέρες

    Can someone tell me what hes holding I dont see anything?

  57. mert bozak

    mert bozakΠριν 5 ημέρες

    İs this can be Ozon layer

  58. Rameez Alam

    Rameez AlamΠριν 5 ημέρες

    lays have more air.

  59. Charmaine Jacobsen

    Charmaine JacobsenΠριν 5 ημέρες

    I remember when I 1st watched a documentary when NASA used the aero gel on SOHO , I thought it was capturing the particles blasted off of the sun , but you said it was off a comet . Also , I remember watching another documentary on the man who " supposedly " was the 1st person to invent it , who was an Asian man . Wow , I was surprised to hear here that it was invented in the 30's . Nonetheless, my impression of the material stii is in complete amazement & awe . I knew when I 1st saw it , all the wonderful capabilities it can , & 1 day be used for ! Truely , 1 of the best inventions of my time if not the past millennium

  60. 水果

    水果Πριν 5 ημέρες

    just wondering how is it taste

  61. Demon

    DemonΠριν 5 ημέρες

    Schools ordering toilet paper be like We will the whole stock !!

  62. CollieAgility

    CollieAgilityΠριν 5 ημέρες

    In english please

  63. bee !!

    bee !!Πριν 5 ημέρες

    i wanna eat it so bad

  64. Mabanag mc

    Mabanag mcΠριν 5 ημέρες

    I still cant lift that...

  65. The Rationalist

    The RationalistΠριν 5 ημέρες

    A cube of glass of that size with thin walls is also 99 percent air and has same weight

  66. Plutonium Isotope

    Plutonium IsotopeΠριν 3 ημέρες

    But it is filled with air

  67. Fooleish

    FooleishΠριν 5 ημέρες

    It looks like solid smoke.

  68. Amila Randunu

    Amila RandunuΠριν 5 ημέρες

    Joseph Seed has gained weight and making aerogel? this can't be good 😲

  69. Pratham Tagotra

    Pratham TagotraΠριν 5 ημέρες

    9:16 minecraft

  70. Buğrahan İzci

    Buğrahan İzciΠριν 5 ημέρες

    cips: funy

  71. Jeremy Daigneault

    Jeremy DaigneaultΠριν 5 ημέρες

    What a waste of chocolate

  72. Ronald Babat

    Ronald BabatΠριν 5 ημέρες

    I thought the lightest solid was plastic

  73. Iamgamerken

    IamgamerkenΠριν 5 ημέρες

    Air still most lightest thing in the world

  74. Prithvir lm10

    Prithvir lm10Πριν 5 ημέρες

    Thanks information

  75. thelco1

    thelco1Πριν 5 ημέρες

    According to director Pete Docter, this material inspired the look of the souls in Pixar's Soul movie.

  76. Afro Disiac

    Afro DisiacΠριν 5 ημέρες

    I saw that! It makes sense...they look like this light airy material. Almost translucent.

  77. Alexander’s Alarms

    Alexander’s AlarmsΠριν 5 ημέρες

    @Liam the f**k does the FBI have to do with that

  78. Raihan Nafis

    Raihan NafisΠριν 5 ημέρες

    @M Khan why u asking this guy

  79. M Khan

    M KhanΠριν 5 ημέρες

    I am interested in different kinds of aerogel for insulation... is there a phone number I can contact?

  80. Liam

    LiamΠριν 5 ημέρες

    @IduckU FBI OPEN UP!

  81. John Smith

    John SmithΠριν 5 ημέρες

    This tech was given to us by them

  82. Bolt Bolt

    Bolt BoltΠριν 5 ημέρες

    The scared gender conjecturally bubble because slice angiographically flow without a complete nickel. squealing, aboriginal beetle

  83. oco et

    oco etΠριν 5 ημέρες

    I need aerogel

  84. Darla Rose

    Darla RoseΠριν 5 ημέρες


  85. Enes Çelik

    Enes ÇelikΠριν 6 ημέρες

    but weighing in on the market turkiyede used buckets lighter

  86. Pleuny Enderlisme

    Pleuny EnderlismeΠριν 6 ημέρες

    Can you snort it?

  87. Java the Mystical Energy

    Java the Mystical EnergyΠριν 6 ημέρες

    Cara mengeluarkan udara dan cairan dari jeli itu gimana ye? Pingin tau tapi gua juga tau bakal ada penjelasan yang panjang sekali

  88. J Flow

    J FlowΠριν 6 ημέρες

    Is this what is sprayed in the sky?

  89. Møqulix

    MøqulixΠριν 6 ημέρες

    love how he said two two instead of twenty two

  90. Jim Radle

    Jim RadleΠριν 6 ημέρες

    Can the pores in Aerogel be backfilled with helium to the point where the solid aerogel floats in 1ATM air?

  91. Mihir Bhole

    Mihir BholeΠριν ημέρα

    @Andy Panter Hydrogen is very dangerous to handle lol. I think airships like the Hindenberg used Hydrogen, hence why it burst into flames after the crash.

  92. Andy Panter

    Andy PanterΠριν 3 ημέρες

    "Unfortunately,, even the lightest aerogels, even if evacuated or backfilled with helium, would be too heavy to float in air, especially if laminated to seal the outer edges of the monolith. However, a helium-backfilled aerogel can be made to float if dropped into an aquarium filled with a dense gas such as xenon." *wonders about hydrogen...*

  93. Voidling studios official

    Voidling studios officialΠριν 6 ημέρες

    Can I EAT it

  94. Bea Ess

    Bea EssΠριν 6 ημέρες

    This is the kind of smoking bunny I'm fine with.

  95. Samarendra Patra

    Samarendra PatraΠριν 6 ημέρες

    Good to see new Inventions.... This is Exciting Stuff

  96. vincen tim

    vincen timΠριν 6 ημέρες

    relou ces traductions automatiques de titres.

  97. John M

    John MΠριν 6 ημέρες

    horrible test. you should never turn off burner. Its obvious that the flame is less on the air gel. need independant lab not someones basement.

  98. Galiceanu Gabriel

    Galiceanu GabrielΠριν 6 ημέρες

    The pointless bobcat naturalistically cry because distance consistently poke past a mixed queen. lazy, husky nurse

  99. Frida Karlo

    Frida KarloΠριν 6 ημέρες


  100. blackworx

    blackworxΠριν 6 ημέρες

    So in terms of "when will you see it in your everyday life" aerogel loudspeaker cones have been a thing for a while, e.g. Audax HD-A. That said, what they are calling "High Definition Aerogel" may be a composite, not sure.

  101. Thony

    ThonyΠριν 6 ημέρες

    you never got weed form my dealer its the lightest things on that planet XD he can give you 1 g and it weights o.8g :O

  102. Faze Aayush

    Faze AayushΠριν 6 ημέρες

    Imagine the feelings of the bunnies...

  103. Nobody

    NobodyΠριν 6 ημέρες

    99.8% Air. That means it's .998 Gram Air & .002 Gram other substance. Oh, I can eat them. I would like to taste 1 Gram Aerogel

  104. Shimiko Sokaeda

    Shimiko SokaedaΠριν 6 ημέρες

    I dont even know why am I here

  105. mk

    mkΠριν 6 ημέρες

    This was made 2 days after my birthday

  106. Kristina Turner

    Kristina TurnerΠριν 6 ημέρες

    The paltry message rahilly smash because camp developmentally wail under a wide second. modern, steady theater


    ADITYA RAJ VERMAΠριν 6 ημέρες

    GRlifes algo is out of this world

  108. Francisco De Santiago

    Francisco De SantiagoΠριν 6 ημέρες

    Me thinking if u surround a space ship with this we could fly threw the sun

  109. Jim Whelan

    Jim WhelanΠριν 6 ημέρες

    Not a solid but a foam

  110. Matthew Cheung

    Matthew CheungΠριν 6 ημέρες

    Aerogel: im 99.8% air. Lays: *finally a worthy challenger.* yes im am making a meme

  111. Liam

    LiamΠριν 3 ημέρες

    @Matthew Cheung *y e s*

  112. Matthew Cheung

    Matthew CheungΠριν 3 ημέρες

    @Liam y e s

  113. Liam

    LiamΠριν 5 ημέρες

    memes so?