Check out Shannon Walker's current and previous haircuts:
Shannon Walker has had a variety of different haircuts in the past decade. She reached fame as a world-class astronaut and physicist. However, the American scientist and a NASA astronaut is specially known for her incomparable looks and her likable character. Rumors and gossip about the 59-year old's haircut are persistently a topic in celebrity magazines and tabloids. Check out Shannon Walker's former looks right here: