Want to know how much poop an astronaut produces while spending a year on the International Space Station? It's somewhere around 180 pounds.

That fun fact is brought to you by NASA, which just released an infographic breaking down all the numbers surrounding astronaut Scott Kelly's one-year stay on the ISS. Kelly and cosmonaut Mikhail Kornienko are both in the midst of spending a full year on the station as part of the One Year Mission — an experiment to study the long-term effects of spaceflight on the human body. The mission will help NASA better prepare for its eventual journey to Mars in the 2030s. A trip to the Red Planet is going to take multiple months, so NASA wants to know how the microgravity environment of space will affect the body during that time.

Kelly is in the midst of spending a full year on the station

Kelly and Kornienko started their mission at the end of March, so they're reaching the halfway point of their journey right about now. NASA released the infographic to celebrate the milestone, as well as a quirky YouTube video narrated by Billy Dee Williams (probably better known as Lando Calrissian). Along with learning how much of Kelly's feces burns up in Earth's atmosphere, you can find out more about his overall radiation exposure or how his internal fluids will shift around in his body. The trivia may make you a little thankful to be spending your year on solid ground.