By Andrew Liszewski
Well not exactly. Aerogel is referred to as “the world’s lightest known solid” and while being chemically similar to glass, it’s actually composed of 99.8% air. Most recently it was used in NASA’s Stardust probe to assist in the collection of the dust trails left behind by a visiting comet.
Thankfully, you no longer need to
steal from work for NASA to own your very own piece of Aerogel. United Nuclear is now selling sugar cube sized chunks of this remarkable substance for $30. (A slighly larger piece will set you back $125!)