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.
If you are going to be a crew member on the ISS, you will also have to take language classes. You will need to be able to talk with the Russian Mission Control Center. Space Vehicle Mock-up Facility. Image to left: In the Space Vehicle Mockup Facility, astronauts practice what they will be doing in space.o practice extravehicular activities, or space walks, astronauts go underwater. The astronauts use the Neutral Buoyancy Laboratory (NBL), a huge swimming pool.. The NBL pool is 62 meters (202 feet) in length, 31 meters (102 feet) in width and 12 meters (40 feet) in depth.