Watching a bubble float effortlessly through the International Space Station may be mesmerizing and beautiful to witness, but that same bubble is also teaching researchers about how fluids behave differently in microgravity than they do on Earth. The near-weightless conditions aboard the station allow researchers to observe and control a wide variety of fluids in ways that are not possible on Earth, primarily due to surface tension dynamics and the lack of buoyancy and sedimentation within fluids in the low-gravity environment.