Public domain
Microgravity
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Gravity or density-driven convection occurs as protein molecules incorporate into a crystal lattice from the surrounding solution. The layer bordering the crystal (the depletion zone) then contains a less-dense protein concentration, causing the layer to rise. The remaining, denser solution sinks because of gravity, creating eddies that make it difficult for more protein molecules to attach to the crystal in an ordered way.
NASA Image and Video Library’s own descriptionSubjects
Credit lineMicrogravity. NASA/MSFC, 2001-06-06. Public domain. ID: 0101740.
