Astronaut Water

It's a Pisser

5/21/2009 7:30 AM PDT BY TMZ STAFF
0521_pee_to_water_ap_tmz_02-1The #1 source for drinking water in space ... is #1. 

Astronauts on the International Space Station had their first taste of liquid goodness from their new urine recycling system -- which magically transforms pee, sweat and water condensed from exhaled air to create a nice cool glass of aqua. Who's thirsty!?

But here's the crazy part -- not only do the astronauts think the final product tastes great ... but they even cracked jokes about it, claiming the water came with this special warning: "drink this when real water is over 200 miles away."

Space humor -- it's golden.