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. Matteo Aversa

    Matteo Aversa

    Acum oră

    Subnautica players: I've seen that one

  2. Mansi Joshi

    Mansi Joshi

    Acum 3 ore

    Would it ever find use in medicine?

  3. Madara Uchiha

    Madara Uchiha

    Acum 6 ore

    bob lazar lab created that right!

  4. Aaron Boeh

    Aaron Boeh

    Acum 12 ore

    Since aerogel can be made from a variety of materials...what about a graphene aerogel or polymer? Would that even be possible, this must have been considered already..

  5. Giwrgos Soiles

    Giwrgos Soiles

    Acum 13 ore

    Perfect insulation for my house.

  6. John`s Rabid Mutt

    John`s Rabid Mutt

    Acum 13 ore

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

  7. nicola mafessoni

    nicola mafessoni

    Acum 15 ore

    sono il comento italiano che cercavi

  8. Ochi Fortune

    Ochi Fortune

    Acum 23 ore

    Is it edible? I really wanna chew it!😁

  9. Jibby Ali

    Jibby Ali

    Acum o Zi

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

  10. M Hassan Khalid

    M Hassan Khalid

    Acum o Zi

    My hair is lighter than that



    Acum o Zi

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

  12. apoorv yash future iitian

    apoorv yash future iitian

    Acum o Zi

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

  13. Anand thakur

    Anand thakur

    Acum o Zi

    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

  14. Mimizah show

    Mimizah show

    Acum o Zi

    Buraya nerden geldik ağa

  15. Latchman Mangra

    Latchman Mangra

    Acum o Zi

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

  16. fulesmackofule


    Acum o Zi

    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)...

  17. 고도슴치


    Acum 2 Zile

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

  18. DoDo on Ryzen 3 1200

    DoDo on Ryzen 3 1200

    Acum 2 Zile

    you can make it by 2 rubies

  19. amir mo

    amir mo

    Acum 2 Zile

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

  20. Ashraf Alattar

    Ashraf Alattar

    Acum 2 Zile

    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



    Acum 2 Zile

    Hashish is lighter 🤣

  22. C G

    C G

    Acum 2 Zile

    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.

  23. Anebee John

    Anebee John

    Acum 2 Zile

    My think is more dense than this thing!!!

  24. JWP 51O15

    JWP 51O15

    Acum 2 Zile

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

  25. Taylie Wood

    Taylie Wood

    Acum 3 Zile

    why do i want to eat it

  26. EZ


    Acum 3 Zile

    Khác đ gì kính đâu. Mà nhẹ vl 😄

  27. izuki moti

    izuki moti

    Acum 3 Zile

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

  28. Arturo Aka

    Arturo Aka

    Acum 3 Zile

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

    • J L

      J L

      Acum o Zi

      It is...

  29. I


    Acum 3 Zile

    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

  30. David Li

    David Li

    Acum 3 Zile

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

  31. Tristan SN

    Tristan SN

    Acum 3 Zile

    can you do that to humans?

  32. Tristan SN

    Tristan SN

    Acum 3 Zile

    I want to eat that for some reason



    Acum 3 Zile

    want to smoke that air to get high

  34. ᴋᴇɴ13 ᴘʟᴀʏᴢツ

    ᴋᴇɴ13 ᴘʟᴀʏᴢツ

    Acum 3 Zile

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

  35. Javier Trota

    Javier Trota

    Acum 3 Zile

    ..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 ???

  36. Ernesto Gonzales

    Ernesto Gonzales

    Acum 4 Zile

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

  37. apexxy


    Acum 4 Zile

    ahhh the days before having to wear masks

  38. Block AD

    Block AD

    Acum 4 Zile

    Pekopekopeko QAQ

  39. Gamer Girl

    Gamer Girl

    Acum 4 Zile

    so this is a solid?

  40. Nicolas Bradley

    Nicolas Bradley

    Acum 4 Zile


  41. ShanTanu Thakur

    ShanTanu Thakur

    Acum 4 Zile

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

  42. Manideep Reddy

    Manideep Reddy

    Acum 4 Zile

    1 grain of rice is not even weigh 1gm

  43. Ameerdeen S

    Ameerdeen S

    Acum 4 Zile

    crush it



    Acum 4 Zile

    Jesus Christ is God.

  45. Kiran Pathak

    Kiran Pathak

    Acum 4 Zile

    Woh ...wortful

  46. Hariharan Natarajan

    Hariharan Natarajan

    Acum 4 Zile

    Your subtitle is so irritated.

  47. Zmzxz Zmzxz

    Zmzxz Zmzxz

    Acum 5 Zile

    Nice teeth

  48. Piyush Singh

    Piyush Singh

    Acum 5 Zile


  49. Sherzy


    Acum 5 Zile

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

  50. David


    Acum 5 Zile

    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.😉

  51. M. Sufyian

    M. Sufyian

    Acum 5 Zile


  52. Bryan Goldfield

    Bryan Goldfield

    Acum 5 Zile

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

  53. Rick Timmons

    Rick Timmons

    Acum 5 Zile

    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!

  54. McLavaBoi


    Acum 5 Zile

    I've found Elon Musk.

  55. Ri No

    Ri No

    Acum 5 Zile

    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..

  56. Ronny Behncke

    Ronny Behncke

    Acum 5 Zile

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

  57. Skrach


    Acum 5 Zile

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

  58. Mark NC

    Mark NC

    Acum 5 Zile

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

  59. Withrow Portugal

    Withrow Portugal

    Acum 5 Zile

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

  60. Callum Colson

    Callum Colson

    Acum 5 Zile

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

  61. mert bozak

    mert bozak

    Acum 5 Zile

    İs this can be Ozon layer

  62. Rameez Alam

    Rameez Alam

    Acum 5 Zile

    lays have more air.

  63. Charmaine Jacobsen

    Charmaine Jacobsen

    Acum 5 Zile

    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

  64. 水果


    Acum 5 Zile

    just wondering how is it taste

  65. Demon


    Acum 5 Zile

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

    • CollieAgility


      Acum 5 Zile

      In english please

  66. bee !!

    bee !!

    Acum 6 Zile

    i wanna eat it so bad

  67. Mabanag mc

    Mabanag mc

    Acum 6 Zile

    I still cant lift that...

  68. The Rationalist

    The Rationalist

    Acum 6 Zile

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

    • Plutonium Isotope

      Plutonium Isotope

      Acum 4 Zile

      But it is filled with air

  69. Fooleish


    Acum 6 Zile

    It looks like solid smoke.

  70. Amila Randunu

    Amila Randunu

    Acum 6 Zile

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

  71. Pratham Tagotra

    Pratham Tagotra

    Acum 6 Zile

    9:16 minecraft

  72. Buğrahan İzci

    Buğrahan İzci

    Acum 6 Zile

    cips: funy

  73. Jeremy Daigneault

    Jeremy Daigneault

    Acum 6 Zile

    What a waste of chocolate

  74. Ronald Babat

    Ronald Babat

    Acum 6 Zile

    I thought the lightest solid was plastic

  75. Iamgamerken


    Acum 6 Zile

    Air still most lightest thing in the world

  76. Prithvir lm10

    Prithvir lm10

    Acum 6 Zile

    Thanks information

  77. thelco1


    Acum 6 Zile

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

    • Afro Disiac

      Afro Disiac

      Acum 5 Zile

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

    • Alexander’s Alarms

      Alexander’s Alarms

      Acum 5 Zile

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

    • Raihan Nafis

      Raihan Nafis

      Acum 5 Zile

      @M Khan why u asking this guy

    • M Khan

      M Khan

      Acum 5 Zile

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

    • Liam


      Acum 5 Zile

      @IduckU FBI OPEN UP!

  78. John Smith

    John Smith

    Acum 6 Zile

    This tech was given to us by them

  79. Bolt Bolt

    Bolt Bolt

    Acum 6 Zile

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

  80. oco et

    oco et

    Acum 6 Zile

    I need aerogel

  81. Darla Rose

    Darla Rose

    Acum 6 Zile


  82. Enes Çelik

    Enes Çelik

    Acum 6 Zile

    but weighing in on the market turkiyede used buckets lighter

  83. Pleuny Enderlisme

    Pleuny Enderlisme

    Acum 6 Zile

    Can you snort it?

  84. Java the Mystical Energy

    Java the Mystical Energy

    Acum 6 Zile

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

  85. J Flow

    J Flow

    Acum 6 Zile

    Is this what is sprayed in the sky?

  86. Møqulix


    Acum 6 Zile

    love how he said two two instead of twenty two

  87. Jim Radle

    Jim Radle

    Acum 6 Zile

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

    • Aaron Boeh

      Aaron Boeh

      Acum 12 ore

      Wonder if it would have enhanced properties in respect to its use as a type of soundproofing..

    • Mihir Bhole

      Mihir Bhole

      Acum 2 Zile

      @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.

    • Andy Panter

      Andy Panter

      Acum 3 Zile

      "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...*

  88. Voidling studios official

    Voidling studios official

    Acum 6 Zile

    Can I EAT it

  89. Bea Ess

    Bea Ess

    Acum 6 Zile

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

  90. Samarendra Patra

    Samarendra Patra

    Acum 6 Zile

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

  91. vincen tim

    vincen tim

    Acum 6 Zile

    relou ces traductions automatiques de titres.

  92. John M

    John M

    Acum 6 Zile

    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.

  93. Galiceanu Gabriel

    Galiceanu Gabriel

    Acum 6 Zile

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

  94. Frida Karlo

    Frida Karlo

    Acum 6 Zile


  95. blackworx


    Acum 6 Zile

    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.

  96. Thony


    Acum 6 Zile

    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

  97. Faze Aayush

    Faze Aayush

    Acum 6 Zile

    Imagine the feelings of the bunnies...

  98. Nobody


    Acum 6 Zile

    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

  99. Shimiko Sokaeda

    Shimiko Sokaeda

    Acum 6 Zile

    I dont even know why am I here

  100. mk


    Acum 7 Zile

    This was made 2 days after my birthday