I'm getting conflicting information from NASA on this. According to the first link (PDF, sorry), waste is disposed of in re-entry craft. But according to the

I'm getting conflicting information from NASA on this. According to the first link (PDF, sorry), waste is disposed of in re-entry craft. But according to the second link, it's ejected to burn up in the atmosphere. https://www.nasa.gov/sites/default/files/files/issrdc_2013-07-17-1600_carrasquillo2013.pdf https://www.nasa.gov/sites/default/files/files/issrdc_2013-0... https://www.nasa.gov/mission_pages/station/research/news/infographic_yearinspace https://www.nasa.gov/mission_pages/station/research/news/inf...