scifi

I was thinking of warp speed hypothesis and how the theoretical warp of space time can happen. I was thinking if we were to stop moving how fast would the entire universe move by us? When I had the theory vibrating particles move but return to their original position. My fun sci fi theory is if...

Hi everybody, I read that laser propulsion could, in future, propel spaceships without carrying enormous mass of fuel. And some beams of X-rays coming from space match such a propulsion of a theoretical extraterrestrial civilization (but natural explanations are possible). Now, as fair as I...