original_query: What was the role of NASA scientists in the Voyager and Pioneer missions?
query: What was the role of NASA scientists in the Voyager and Pioneer missions?
answer: The provided text states that the Voyager and Pioneer missions allowed Pendleton to meet scientists from many universities and other NASA centers when they came to Ames to give seminars or meet with colleagues.  It does not detail the overall role of NASA scientists in these missions.