As part of NASA’s ongoing Advanced Colloids Experiments, researchers aboard the International Space Station recently viewed microscopic particles in 3D images. The research, conducted in collaboration with Proctor & Gamble Co., addresses the behavior of colloids in gels and creams.
The results obtained with the upgraded Light Microscopy Module (LMM) will be applied to improve product shelf 
Source: NASAlife of consumer products and provide for more efficient product packaging. The extra-terrestrial experiments have used different imaging techniques with hardware developed by Glenn and ZIN Technologies, Inc. The recent confocal upgrade to the LMM enables scientists to view micron-sized particles in consecutive 2D layers, or slices, and combine them into 3D models that can be seen from any angle. The models greatly increase the ability for scientific observations of how colloidal systems evolve.
Particles in microgravity environments settle 100,000 times slower than on Earth, allowing observation during days or weeks instead of just minutes, revealing previously hidden thermo-dynamic interactions. The researchers now have the enhanced ability to study particle shapes, coatings, chemistry and manipulation with magnetic fields by observing these now visible particle interactions.
