Jeanette Epps was preparing for a historic launch to the International Space Station in January when NASA suddenly pulled her off the mission without warning.<br />Epps is still waiting for an explanation, the Houston Chronicle reported.<br />In a January press release, NASA announced that Epps would not be part of the Expedition 56/57 crew as previously announced, She said: "I don't know where the decision came from and how it was made, in detail or at what level,. <br />