Scott Kelly was on the board of the International Space Station for 300 days, as commander of the one-year mission, which NASA will soon complete.
To properly celebrate its stay on the ISS, NASA has released a video in which Kelly plays tennis. Just as we can see in this video above, he doesn’t use a ball, but a bubble of water in microgravity. In addition, the video was filmed in 4K quality, so make sure check the settings before you click “play”.
The one-year mission is basically a scientific research project focused on the health effects of long space expeditions. Scott Kelly and Mikhail Korniyenko will spend a total of 342 days on the ISS, along with a team of scientists who will conduct all kinds of medical experiments. They will return to Earth this spring.