When it comes to science communication, the most important thing to keep in mind is the perspective of the layperson, what someone will see, think, or understand if they have no prior knowledge.  When you have some expert knowledge in science it can be hard to put it aside, but imagining the thought-process of a beginner gives you valuable information about how you are communicating, and can make a huge difference in your effectiveness. Which is why I am always thrilled to see things that communicate real science, yet stimulate the imagination.  NASA, being a publicly funded organization, has to...