Sample InspectionEuropean Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, works with experiment samples.Image Credit: NASA Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/hhp-brb-iss041e055417-3/Copy URL to clipboard> DownloadShareTakenOctober 3, 2014Image CreditNASASize1041x693px