The Parkes 64m telescope is celebrating its 50th year of enabling world-class discovery with a Science Symposium that will take place at the telescope from 31 October through 4 November 2011. In this meeting we look back at some of those lasting contributions, look around at those currently underway and look forward to those still to come. The meeting will include invited and contributed talks and will be limited to 80 participants. The venue for the meeting will be the Parkes Telescope Visitors Centre adjacent to the Telescope. Group photos from the conference are here.