dr. patricia collins is a psycho physiologist whose specialty is behavioral medicine.one of a growing number of women working at the highest levels of responsibility in the scientific community of nasa. her research will help to unravel some mysteries of survival in outer space. ♪ >> long before a strong a science, people gazed -- i will start again. >> i write and produce the nasa space stories, the special reports and the space notes which are radio programs that go out to about 2,000 stations throughout the nation. i find it is very important to disseminate the information about what nasa does through these radio programs. there are many, many different things that are going on at nasa every day that the press does not cover. >> nasa, the national aristotle national aeronautics and space administration presents a look back at voyager 2's encounter. >> i enjoy the actual interviews with the scientists. i find sometimes it is difficult because they tend to speak in very scientific terms. .o i use a narrator i use willard scott. >> are we going to do this first? >> i w