This Catalyst article investigates the nature of aerogels, which are among the least dense solid materials, not much denser than air. Aerogels were made as the result of a bet and ended up going into space to capture comet dust. They are the lightest solids which exist and have some unusual features.

The article is from Catalyst: Secondary Science Review 2014, Volume 24, Issue 3.

Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets

 

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