Commander Lousma records PGU data on middeck

STS003-22-122 (30 March 1982) --- STS-3 Commander Lousma, wearing communications kit assembly (ASSY) mini-headset (HDST), records Plant Growth Unit (PGU) data for the Influence of Weightlessness on Plant Lignification Experiment at forward middeck locker MF14K. The experiment is designed to demonstrate the effect of weightlessness on the quantity and rate of lignin formation in different plant species during early stages of development. Port side bulkhead with window shade and filter kit appears behind Lousma and potable water tank below him. Trash bag also appears in view. Photo credit: NASA