Answer: GALILEOGALILEI

Galileo Galilei was an Italian astronomer, physicist, and engineer who played a crucial role in the Scientific Revolution. He is best known for his pioneering observations and experiments with telescopes, which contributed to our understanding of planetary motion and the heliocentric model of the solar system. The phrase "Gee whiz" is a colloquial expression used to express surprise or amazement, often in an exaggerated or sarcastic manner.

Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Gee whiz?. Explanations are generated by AI and may be inaccurate.