<blockquote><font class="small">In reply to:</font><hr /><p>How Do thay handle the gas / toilet problems in space? I've always wondered that, and no TV program or anything really addresses the matter. It's like Star Trek has no references at all to toilets.<br /><br />I've always thought it was like being in hospital when the nurses say "hand in your dignity at the front desk and you can collect it on your way out." <p><hr /></p></p></blockquote><br /><br />Well, at least aboard Shuttle, privacy is virtually nonexistant -- they do have a semi-private cubicle for the toilet, but everything else simply has to be done in close quarters with your crewmates because there simply isn't anyplace else to go. It's a little better on ISS, simply because of the size, but not much.<br /><br />Gas -- well, it's gas. Farts aren't really containable. I imagine things get rather stinky after a while, though eventually one would grow accustomed to it.<br /><br />As far as liquid and solid wastes, there are several options. Both the Shuttle and the ISS have a single toilet apiece. I will describe the ISS toilet, though I think the Shuttle toilet is similar. It is designed for use by both sexes; men have the option of peeing into a funnel while standing up. There is a lap restraint to keep you firmly in position on the seat, and a fan blows constantly to ensure that everything ends up in the collection receptacle (in theory). A centrifuge spins the waste, separating solids and liquids. The liquids are then dumped overboard. (Legend has it that astronauts have been known to play pranks on rookies by saying "hey, look at the UFOs!" and then activating the wastewater dump. Urea crystals are said to refract light quite beautifully.) Solids are sealed into a bag to contain odors, then returned to the Earth. (That's one of the things that gets packed into Progress.)<br /><br />Sometimes the toilet breaks. Then they have to resort to somewhat less pleasant options. They carry Apollo fecal canisters <div class="Discussion_UserSignature"> <p> </p><p><font color="#666699"><em>"People assume that time is a strict progression of cause to effect, but actually from a non-linear, non-subjective viewpoint it's more like a big ball of wibbly wobbly . . . timey wimey . . . stuff."</em> -- The Tenth Doctor, "Blink"</font></p> </div>