Every now and then, it's interesting to check with astronauts aboard the International Space Station on the state of the toilet — the way humans in zero gravity take care of bathroom business. The International Space Station has been continuously occupied since November 2000, hosting more than 200 astronauts from 15 countries, and toilet science has improved (but it's still pretty weird).

As you will see, European Space Agency astronaut Samantha Cristoforetti recently made a video to bring us up to date on modern toilet practices in space.

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Here’s a hint: It’s all about suction.

There is one suction device that takes care of No. 1, to use Cristoforetti’s scientific term. That device carries urine away to be recycled into potable water.

And then there’s the device that, according to Cristoforetti, “allows you to do No. 2 in weightlessness." We'll allow her to take it from there...

>> Mobile users can click here to watch video

Are you dying to know more? For tips from astronauts and a NASA trainer on best body positions and how to stay in place while taking care of business, go here.