Washing hair in any space station is difficult as hell. As seen from the GIF, it surely is a hair-raising adventure. Due to zero gravity, all objects face weightlessness. So hair instead of falling stand up. This GIF is from a video posted by an American astronaut Karen Nyberg on YouTube and Twitter. Washing hair on Earth is quite a simple act of standing underneath a shower and scrubbing hair with shampoo. However, at space station, even the water does not fall.