In a brief clip from NASA, astronaut Scott Kelly is seen playing 'liquid ping pong.'
NASA just released a video of astronaut Scott Kelly having a bit of fun onboard the International Space Station.
In the clip, Kelly takes hold of two hydrophobic paddles etched with a polycarbonate laser and spray-coated with Teflon to make them highly water-resistant.
He then pours a large drop of water--about 100 times bigger than a raindrop--out into the microgravity and sends it pinging vertically back-and-forth.
The liquid ping pong presentation marked Kelly's 300th consecutive day in space.
