Poll Suggestion: Water!

Thank you, Mario! That was very interesting to research. I've put your ideas into the last two options. :D

https://simple.wikipedia.org/wiki/Water_on_Mars

https://de.wikipedia.org/wiki/Chinesische_Wasserfolter

Mario, I've put the "Chinese water torture" packed in the option about outlawed water tortures and weapon. I just don't get what you further have a point about water and Mars. Can you please give me a little idea about what you meant about? Thank you in advance.

I've put the body-water thing at second place.

the possibility of water existing outside planet Earth

There is an option now: There are unmeasurable masses of water in universe