The correct answer to this open question is the following.
Unfortunately, you did not specify if this is about a book, an article, a video, or an interview.
You did not provide any context, topic, or reference. Without any reference is very difficult to help you answer the question. What is the topic? Who is Griffin?
However, trying to help you, we did some deep research.
We can say that you are referring to the article titled "The Real Reasons We Explore Space," written by journalist Micahle Griffin in 2007 for the "Air and Space Magazine."
After reading the article we can say that Griffin appeals mostly to logic because many times he states the reasons why NASA has sent missions to explore space, the moon, and Mars, sharing some arguments that appeal to the reason so the readers can better understand the motives.
In some other lines of the text, the few, Griffin appeals to emotions when the journalist says that sometimes there are times when people try to accomplish things we can not logically understand and we have to use intuition.
