Would i be able to see everything here in a full day? Or should i pman for two days?

If you can do it, attend the Lunch with an Astronaut. It was well worth the money

I would say take 2 days if you want to experience every movie and exhibit that Kennedy Space Center has to offer. I spent 1 day hurrying around and got most of everything done but if I was a bigger fan of outer space 2 days would of been my choice.

You can see everything in a day. Just get there early.