Early manned space capsules dumped human waste (at least urine) overboard. https://history.nasa.gov/SP-368/s6ch2.htm https://history.nasa.gov/SP-368/s6ch2.htm

Early manned space capsules dumped human waste (at least urine) overboard. https://history.nasa.gov/SP-368/s6ch2.htm https://history.nasa.gov/SP-368/s6ch2.htm No idea what the Soviets did.