The problem I have with your experience is that it is shared by almost all children. I personally have experienced this planetarium type activity no less than 4 times in my life. I find it hard to believe that an activity such as this prompted your intense love for astronomy especially since it happened in third grade.
My experience in the dome and the time since then has instilled a passion in me that will greatly influence my college experience.
How so?
I see my potential stay at the University of Florida as a medium on which I can further inflate my passion and grow both socially and academically
I'm not sure if "inflate" is a good choice.
They showed galaxies suspended in a purplish hue and stars that I was told were nearly two thousand times as big as the Sun. One picture in particular taken by the Voyager 1 spacecraft showed the Earth from a vantage point on the outskirts of the Solar System. In the picture the Earth appeared as just a speck on the paper, or as Carl Sagan called it, a pale blue dot.
These things can be seen on the internet.
It was at this time that I no longer wanted to be a fireman, police officer, or rock star, but instead I wanted to study the universe.
Since your experience could instantly make you forget about your other aspirations I wonder if a similarly exciting incident could make you change your mind about studying space just as fast in the future.