Ultra-thin Sail Could Speed Journey to Other Star Systems

Graphene light sail (Credit: GrapheneSail team)

PARIS (ESA PR) — A tiny sail made of the thinnest material known – one carbon-atom-thick graphene – has passed initial tests designed to show that it could be a viable material to make solar sails for spacecraft.

Light sails are one of the most promising existing space propulsion technologies that could enable us to reach other star systems within many decades.