how do astronauts relieve themselves in space?
813424
Toilets have various restrains (foot loops, thigh restraints, etc.) so that astronauts will not float away when he/she is using it. Also, due to weightlessness, the toilets rely on air and vacuum pump which creates suction to remove the waste. When urinating, astronauts use a large tube that is connected to the bottom front of the toilet. This tube also has air circulating through it carrying the urine to a holding tank. Anatomically correct urine funnel adapters are attached to this tube so that both men and women can use the same toilet.
761847
Some of them are buoyant and sleep floating on the surface breathing air. Others can do what in humans is comparable to the "dead man's float" where you are under the water motionless then tilt your head back only, rise to the surface to breathe, tilt it back and resubmerge. Hippos can do this without ever waking up so I assume some marine mammals can too.
722491
Try a pocket rocket. Works better w/ a partner. If ur flying solo, use a shower massager.
395738
While most of the time to and from earth was spent checking systems and so forth, they were able to accomplish a few experiemenst in the cramped quarters of the Apollo capsule during their "coasting" periods between the earth and moon and back.\n\nComposit Casting:\nSeveral compounds were heated, mixed, and then allowed to cool, to check low gravity mixing conditions.\n\nElectrophoretic Separation:\nA number of organic compounds were separated by electrophoresis, to check low gravity separation conditions\n\nHeat Flow and Convection:\nExamination of heat flow rates in fluids in low-gravity\n\nLight Flashes Experiment:\nMany poeple in space experienced flashes of light, both with their eyes open and with them closed.  This device was to test if the hypothesis about them coming from cosmic rays striking, and interacting with the eye were the cause of them.  They were.\n\nLiquid Transfer Demonstration:\nSeveral expirements involving trying to manipulate fluids were performed.\n\nSee Source for details of each experiment (I dislike to copy and paste entire pages unless I personally have written them)
988096
No space suits are worm, infact tubing has to be run inside the space suit with water running through it to keep the astronaut cool. A space suit is like a mini space ship, it is completly closed from space and there is now were for your body heat to go.So without the water filled tubing you would cook in the suit.
2999
Pilot Astronauts\n\nEarly in the U.S. manned space program, jet aircraft and engineering training were prerequisites for selection as an astronaut. Today, scientific education and experience are equally important prerequisites in selecting both pilots and mission specialists.\n\nPilot astronauts play a key role in Shuttle flights, serving as either commanders or pilots. During flights, commanders are responsible for the vehicle, the crew, mission success and safety -- duties analogous to those of the captain of a ship. Shuttle commanders are assisted by pilot astronauts who are second in command and whose primary responsibilities involve controlling and operating the Shuttle. During flights, commanders and pilots usually assist in spacecraft deployment and retrieval operations using the RMS arm or other payload-unique equipment on board the Shuttle. \n\nMission Specialist Astronauts\n\nMission specialist astronauts, working closely with the commander and pilot, are responsible for coordinating on board operations involving crew activity planning, use and monitoring of the Shuttle's consumables (fuel, water, food, etc.), and conducting experiment and payload activities. They are required to have a detailed knowledge of Shuttle systems and the "operational characteristics, mission requirements and objectives and supporting systems for each of the experiments to be conducted on the assigned missions." Mission specialists perform on-board experiments, spacewalks (called extravehicular activity (EVA) and payload handling functions involving the RMS arm. \n\nPayload Specialists\n\nThis newest category of Shuttle crew member, the payload specialist, is a professional in the physical or life sciences or a technician skilled in operating Shuttle-unique equipment. Selection of a payload specialist for a particular mission is made by the payload sponsor or customer. For NASA-sponsored spacecraft or experiments requiring a payload specialist, the specialist is nominated by an investigator working group and approved by NASA.
130627
Of those water is the most important. If need be we could survive for about a month without eating, living only off of our fatty reserves. Shelter would reduce the amount of water we would require to survive, say in a desert, but even still we couldn´t survive for many hours completely without water.\nIf you are in a spaceship and all your oxygen disappeared you would die within minutes...
615923
you either urinate it out or you crap it out.  The water content can also leave your body by your poars in your skin and it evaporates into the air.
283108
Lol..they probably have a little "pee cup" or something.  It's probably hooked into their suits so they can "relieve themselves" when they need too.  My boyfriend works on jets in the Marine Corp and he says that the pilots have something like that b/c they can't just land...especially when going cross-country. :)
719839
in the shuttle? absorbed and filtered. Their is still humidity but under control.\n\nIn the outer space there isn't any  just on rocks(asteroid)
561749
A space walk is when an astronaut leaves a spacecraft while it is in orbit.  He can either be tethered to the spacecraft to prevent his floating too far away from it, or can be wearing some device, such as the Manned Maneuvering Unit, which can propel him away from the spacecraft and return to it.
1087725
Astronauts can indeed cry in space. Tears run down your face because of gravity, but they don't need gravity to form. When the tears get big enough they simply break free of the eye and float around. But why would an astronaut cry in space in the first place? :)
262346
Well, the youngest astronauts would be in their late 20's, and they should be sexually mature enough to be the masters of their domains for the duration of their flights. Most astronauts shouldn't be in space for more than a few weeks at a time, anyway.
282253
I'm not quite sure what you are asking here.\nHowever I can tell you that in order for us to remain whole our blood exerts a pressure of 1 atmosphere on our skin to balance that exerted on us by the air around us.
287954
The safest way without drugs is an isolation chamber. Floating in complete darkness, in a liquid with the same temperature and specific gravity as the body for an extended period can often induce an out of body experience, along with auditory and visual hallucinations. It may feel like you're leaving your body, but the fact is it's simply an illusion caused by not enough bio-feedback stimulating the part of your brain responsible for situating your body in space. There have been numerous University studies that have used isolation chambers, in part seeking a rational explanation for near-death and out of body experiences. Interesting stuff.
796035
It's not zero gravity, it's microgravity actually. They lose bone mass and muscle tone when they are subjected to this condition because they are no longer applying weight and resistance to their bodies so their bodies stop maintaining what it percieves it doesn't need.\n\nTo sleep they must strap themselves to the wall and to drink they use straws to keep the liquid from floating everywhere. The name of the game when eating is, get it all in your mouth.\n\nPeople can swallow in space as long as they have a normal, healthy GI tract because gravity isn't what keeps your food down. Your esophagus keeps itself flattened while it isn't in use and when you do swallow, the food or beverage is propelled down into your stomach by muscle ripples in your esophagus until it enters the stomach. The stomach has a sphincter muscle which acts as a valve up top that opens to allow food in and then closes to keep it in.\n\nThey can't take birds into outerspace because birds need the gravity here on Earth to swallow.
227550
If the question is: If there a machine that can create the sense of weightlessness.\n\nYes there is. That's the kind of machine the astronauts use to practice.