Astronaut Frank Culbertson works in the U.S. Destiny laboratoryISS003-E-5552 (7 September 2001) --- Astronaut Frank L. Culbertson, Jr., Expedition Three mission commander, uses a Personal Data Assistant (PDA) in the U.S. Laboratory.Image Credit: NASA Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/iss003e5552-9502196073-o/Copy URL to clipboard> DownloadShareTagsInternational Space StationImage CreditNASASize3060x2092px