The first man has been described as white, around 5ft 9ins, of slim build, wearing a black hat and scarf around his face with a yellow high-visibility vest over a black coat.
In his will written in 1934, Philip Canning Howard said his heirs had to change their surname to Howard and take up the family coat of arms within a 12-month deadline, London's High Court heard.
Among the possibilities: Have astronauts wear a deployable shield resembling a heavy winter coat or have them hunker down in a storm shelter aboard the spacecraft during periods of high solar activity.