QUESTION: When you talk about the ground personnel being aware of the experiment requirements, I'm not sure I understand what they need to know besides how to load things into the shuttle? ANSWER from Louis Ostrach on November 19, l997 Just imagine that you are a scientist in your lab at a big university and you are getting ready to do your experiment. You and your staff have developed specific procedures, gathered all the necessary supplies and equipment, arranged for all the skilled people that you will need to perform specialized parts of the experiment (or the data analysis), and don't forget that you all are gathered in labs with lights, temperature controls, electrical outlets, computer terminals, desks, chairs, pencils, pare, etc. Now, imagine that you are going to move into an empty building and set up all of that equipment, make arrangements for all those people, and get your experiment ready to give to another group of people to perform for you. That is what doing a shuttle experiment is like. In other words, with a few exceptions, at the launch site, NASA provides the basic facilities that are expected in a lab and the scientist brings all of his/her special equipment, procedures, and staff to get the experiment ready. Then, the scientist has to literally give the experiment to the folks who will load it on the shuttle and wait for launch. The experiment is performed by the crew, who have been trained by the scientist but are not usually part of his/her regular team. And finally, when the shuttle lands and the experiment is given back to the scientist, any special processing at the landing site is performed before everyone goes back to their home lab. Now imagine, every step of that process has to be understood and prepared for so that nothing is forgotten (the scientist can't run down the hall to a friend to borrow a piece of equipment that he forgot because that friend down the hall isn't at the launch / landing site). Does that give you a better idea of what the ground personnel are doing?