Scott Kelly has been in space for a little over 300 days now, and we imagine that across that span of time, one would find something new and novel about living in microgravity. Enter a sphere of water and hydrophobic paddles.

Using a drop of water over 100 times larger than a raindrop, the video above shows Kelly gently bouncing the ball of water between two paddles with 300 micrometer posts on the surface coated with Teflon. The material of the paddles prevents the water from bursting upon impact, and if Kelly had done a smaller drop, he would've been able to hit the drop much harder than he does in the video.