The Beatles drummer, Ringo Starr, was among those asked to add their messages to a Lucy mission plaque. The spacecraft has set off on a 12-year quest to explore eight asteroids, mostly around Jupiter's orbit. The mission was named after the 3.2m-year-old skeletal remains of a human ancestor found in Ethiopia nearly a half a century. Dr Donald Johanson discovered the remains while the Beatles song Lucy in the Sky With Diamonds was playing, passing on the name to his discovery