Carbon aerogel is a lightweight, highly porous material made primarily from carbon. It is created by replacing the liquid in a gel with gas, resulting in a substance that is about 99.8% air. This unique structure gives carbon aerogel exceptional properties, such as low density and high surface area, making it useful in various applications, including insulation and energy storage. Due to its remarkable ability to absorb oil and other substances, carbon aerogel is also used in environmental cleanup efforts. Researchers are exploring its potential in fields like nanotechnology and supercapacitors, where its properties can enhance performance and efficiency.