Do Air crafts discharge human wastes (toilet wastes) in the space?

no. they actually have tanks in the air craft..which holds all the waste that we do. When they land, they have truck with tanks also on them, with a huge pump. So it sucks the tanks in the air craft, into the tanks in the truck.

Then they dispose of it properly. Which makes it harmless for us and the enviroment

I remember hearing one time, that airplanes that are on long flights, do drop from the holding tank over huge open area's of oceans!

And Nasa space craft have holding tank systems, but totally different then airplane holding tanks! The astronauts have pouch systems built into there spacesuits and the pouches are removeable and put into a holding tank system and new pouches put back into the spacesuits! Because up in space it would be impossible to use a toilet system because the discharges of body fluids etc. wouldn't go into a toilet because of no gravity!

They wear a diaper like system! For the trip up, and the trip back down!

We'll lets think about this. Dropping human fecal material from 30,000' what would happen...Sure, the liquid would freeze then melt, then vaporize. Then the solids would impact people, homes and automobiles with a lot of force causing possible damage and injury. On top of that by releasing the holding tanks in flight you would cause an explosive decompression of the cabin which we all know happens on almost every flight. NOT. It is stored just like in an RV, in a large tank. Then a truck comes by on the ground to dump all of it out. It is then properly disposed of into the sewer. EPA would never allow airlines to dump waste like that, even if it were safe to do in flight.

On occasion yes, it is called "blue ice".

But they arent supposed to. They have what is referred to as honey buckets. Lavatory waist tanks where they contain human waste.

Some aircraft have the flushing method and some have a vacuum waste system.

In the airline business if you ever get doused with degerm (the blue liquid used in the toilets) you will forever be known as a smurf.

no,they hold big tanks at the back of the aircraft,which are emptied every day.that big woosh you hear when you press the toilet button,is like a huge strong vacuum cleaner which sucks the waste into the tank

not discahrged in space. these r cleaned after landing. there is a tank which stores till its in air

I think they do when flying over seas.

sophisticated point. lookup on to google or bing. this could actually help!

Yes, they do, it actually freezes & crystallizes in space.

yep drops out all over us