A. E. writes: I have a 1981 Charles/Diana wedding coin, special edition 25 pence silver piece. I thought that Great Britain doesnât make a 25 pence.It is about the size of a 50 cent piece.he copper-nickel issues are worth about US$1, issued in a plastic bank envelope, CuNi specimen, issued in a Royal Mint folder, about US$3.00. A silver (sterling) proof version was marketed by the British Royal Mint (28.27 grams sterling silver), mintage: 218,000. Value: about $25.
How long do you have to study to become an astronaut? A: NASA requires its mission specialists and its commander and pilot astronauts to have bachelor's degrees in biological science, physical science, mathematics or engineering; most people take four years to earn these degrees.
Astronaut candidacy and path to flight. Once selected, NASA does not consider you to be a full astronaut yet. There are two years of basic training ahead in which you are considered an astronaut candidate.. The candidates receive basic classroom learning about the International Space Station and spaceflight generally.stronaut candidacy and path to flight. Once selected, NASA does not consider you to be a full astronaut yet. There are two years of basic training ahead in which you are considered an astronaut candidate.. The candidates receive basic classroom learning about the International Space Station and spaceflight generally.