Public domain
Microgravity
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
These Vapor Diffusion Apparatus (VDA) trays were first flown in the Thermal Enclosure System (TES) during the USMP-2 (STS-62) mission. Each tray can hold 20 protein crystal growth chambers. Each chamber contains a double-barrel syringe; one barrel holds protein crystal solution and the other holds precipitant agent solution. During the microgravity mission, a torque device is used to simultaneously retract the plugs in all 20 syringes. The two solutions in each chamber are then mixed.
NASA Image and Video Library’s own descriptionCredit lineMicrogravity. NASA/MSFC, 1994-02-16. Public domain. ID: 9401631.
