While carrying out a liquid-liquid extraction using dichloromethane and a sample of lake water, Jennifer Apell, a graduate student at MIT, observed the formation of an emulsion in the sample, likely due to the presence of certain chemicals in the water. When she let the dichloromethane and water separate, air bubbles became trapped by the emulsion layer at the dichloromethane/water interface, creating the effect seen in this picture. Apell is studying the bioavailable concentration of polychlorinated biphenyls (PCBs) in contaminated water bodies to assess their risk to living organisms.
Through science, we learn how incredible our story truly is. It’s a story that’s literally been written in the stars. It’s a story that is still unfolding. And it’s a story that every single one of us is a part of.
“When you’re in love, you want to tell the world." - Carl Sagan