Like Arissa I tend to love time travel, space, and alien contact. I know Prometheus was somewhat controversial to "Alien" fans but I thought it was absolutely exciting landing on an alien moon. The other one for me is Event Horizon. It's a sci/fi/space/horror movie. A rescue ship goes to rescue a secret military experiment craft that can fold space.
I like these movies because even though they are make believe there may be some truth to them in the future.. Many many years from now it will probably be a privately funded craft as in Prometheus or a military craft (probably secret) that will be the ones who make an extended reach out into our universe.
One last thing, A I fans you must watch Bicentennial man with Robin Williams. Although it's not about space as I like, it is about transcending many generations and helps to show us how finite our lives are.