Explaining The Universe on Instagram: "On the ISS, water droplets can actually orbit a charged metal ball because microgravity lets even tiny forces dominate. When the sphere is electrically charged, it creates an electric field that pulls on the naturally polar water droplets. If a droplet already has a bit of sideways motion, the electric pull bends its path into a curved, almost orbital loop around the ball. With no strong gravity dragging it down, the droplet can circle, wobble, or spiral in