OTD…Oct. 23 and STS-120 Justin RayOctober 23, 2015 12:12 a.m. #OTD in 2007…Discovery launched Harmony as the gateway to future international science laboratories Plays from YouTube ← Back to Shuttle ← Previous storyOTD…Oct. 29 and STS-95 Next story →OTD…Oct. 14 and Endeavour
