Project Icarus (interstellar)
Project Icarus is a theoretical engineering design study aimed at designing a credible, mainly nuclear fusion-based, uncrewed interstellar space probe. Project Icarus was an initiative of members of the British Interplanetary Society (BIS) and the Tau Zero Foundation (TZF) started in 2009.
Source: Wikipedia — Project Icarus (interstellar) (CC BY-SA 4.0)