On the International Space Station, even the simplest things are hair-raising. Especially when they involve hair.
Astronaut Karen Nyberg is spending six months on the space station, but she's kept her long locks, though they look like a pain to wash.
She posted this video to YouTube on how she gets her hair clean — without a shower. She uses a bag of water to wet her roots, then massages in no-rinse shampoo. Her hair stands on end because of the lack of gravity in space.
There is room on the ISS to take a shower, but they are limited to not more than 4 liters of water. Four liters being the equivalent of two 2 liter bottles of soda.