Lightspeed travel sounds exciting, looks boring.
Physics students at the University of Leicester have calculated what the view would look like from the window of a spacecraft travelling at the speed of light. Thanks to the Doppler effect, the frequency of light waves change as you move relative to the source, leading to the uninteresting blob of light, which is actually leftover glow from the big bang.
If you’re moving at (say) 99.99995 percent of the speed of light, which is what these students used for their calculations, light from stars will be shifted so far towards the blue end of the spectrum that it’ll end up way past what we can see with our eyes, turning into x-rays that are effectively invisible. Meanwhile, very long wavelength light that we ordinarily can’t see, like cosmic background radiation, is shifted up into the visible. So essentially, stars disappear, and all we see is the leftover glow from the Big Bang as a formless blob of light.