Graphene aerogel is an ultra-light material made from graphene, a single layer of carbon atoms arranged in a two-dimensional lattice. It is known for its remarkable properties, including high strength, excellent electrical conductivity, and exceptional thermal insulation. Due to its low density, graphene aerogel can float on water and is often referred to as one of the lightest materials in the world. This innovative material has potential applications in various fields, such as energy storage, environmental cleanup, and aerospace engineering. Researchers are exploring its use in supercapacitors, batteries, and even as a component in composite materials to enhance performance and reduce weight.