MicrogravityAstronaut Kathryn C. Thornton, payload commander for STS-73, works at the drop physics module (DPM) on the portside of the science module aboard the Space Shuttle Columbia in Earth orbit. Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/amf-9902604/Copy URL to clipboard> DownloadShareTakenOctober 20, 1995ProducerMSFCSize1024x1547pxPIA Number9902604