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.

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!

Filming by Raquel Nuno
Animations by Maria Raykova
Drawings by Mariel Solsberg

Music From “Seaweed” “Swagger Stagger”


  1. Creative Cubing :D

    What about atoms

  2. I need some of this for my house insulation.

  3. What if they could make Aerogel tiles filled with helium and coated/sealed with graphene ? A tile with a tough, light exterior yet lighter than air. What could we build with that ? If not graphene then perhaps ceramic matrix composite.

  4. 3mm to half an inch comparison?! #click baited

  5. I wanna squish or eat it

  6. Augustine Brind

    What about a feather

  7. Guess you could say its light as a feather

  8. Okay what about cotton damn

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