The S5 science run, whose goal was to accumulate one year of triple-coincident data at LIGO design sensitivity, officially ended at 00:00 UTC October 1, 2007. This completes the data-taking stage of a project which was officially begun in 1992 by Kip Thorne, Ron Drever, and Rainer Weiss. LIGO will now undergo two planned upgrades to improve sensitivity.