Hello, I am a student currently finishing my compulsory education in school and I have always been interested in science and literature, and so the next obvious step would be a love of SciFi. I often find myself getting ideas for novels that will never come to fruition, but I know have one idea that I’m willing to work at, and for this project I have a few questions that need answering so I decided why not ask the experts. I am not very educated and all I am really looking for is a yes or no answer followed by a simple explanation of how it works/why it doesn't. So here are my questions: Could we harvest nebulae for the plasma and hydrogen they are composed of? Can hydrogen be used as an effective fuel? Can plasma be used as an effective fuel? For paraterraforming (creating domed environments on an inhabitable planet) to happen, would that mean extracting resources from our own planet i.e. soil, oxygen, therefore leaving the planet with less of this and therefore in danger? Is it possible to get the necessary components from elsewhere? If the aforementioned fuels were used (hydrogen/plasma) and were released out of the domed environments into the planets own atmosphere what composition would the atmosphere take? i.e.. What would the main gases be, would there be ash covering the ground etc. Are walking vehicles i.e. Star Wars At-Ats, superior to wheeled vehicles in any way/situation/environment? And finally, is hover technology possible i.e. Star Wars floating tank idea (See Episode I) If this isn't the right place to ask these then I do not mind and if you want me to explain more about what I am asking then just tell me.