Foam, of coarse

Image: The Foam-Coarsening experiment ran a new batch of cartridges in the Fluid Sciences Laboratory of the European Columbus module. The experiment began in April to study foams in depth under the more stable conditions afforded by microgravity on the International Space Station. The cell cartridges contain a mixture of soap and water. Bubbles are generated by moving a piston at high speed. The foam is observed for up to 100 hours, during which the foam bubbles become larger but less in number....