On this day in space! Oct. 23, 2007: NASA launches Harmony module to ISS on STS-120 space shuttle mission

Mission Background and Launch Event

On October 23, 2007, NASA carried out a milestone launch with Space Shuttle Discovery during the STS-120 mission. The primary objective was to deliver the vital Harmony node module to the International Space Station (ISS).

STS-120 Details and Deployment

Carried into orbit aboard Discovery, the Harmony module represented a major structural addition to the orbiting laboratory. The STS-120 mission crew worked closely with ISS personnel to support its deployment and installation.

Impact on Space Station Expansion

The addition of Harmony paved the way for attaching international science laboratories from Europe and Japan. This historical mission remains a key highlight in human spaceflight and orbital laboratory assembly.