Say I was embarking on a journey to Neptune at 95% the speed of light. Neptune has a minimum distance of 4.3 billion km from Earth. If I was travelling at 2.85 x 108 m/s, I would take 4 hours 11 minutes and 38 seconds to get there. Is this even possible? 1)What would I see of my surroundings, would I be able to see anything at all? Would I be able to see anything at all, since I'm travelling close to the speed of light? 2)Would I have any communications difficulties? Since I'm travelling at such an insane speed, I would encounter time dilation, which would make communications with Earth difficult because we are in different time references, right? And will the Doppler effect affect me as well? 3)What relativistic effects (time dilation, aging - twin paradox, etc.) will I face? Could someone elaborate on this because I really can't grasp this concept of time dilation and the twin paradox thing. 4) What happens on my return journey?