Question: How would you like to travel in space and why? How would it work and how would you construct it?

Sam Gaughan answered on 14 Jun 2019:

This is well out of my area of expertise, but it is something I am interested in as a casual observer. The ideal form would be the Alcubierre warp drive, which is a hypothetical machine that, amongst other things, requires the use of negative mass to move the space around you instead of moving the ship, allowing you to effectively travel faster than light (without actually moving!)

https://en.wikipedia.org/wiki/Alcubierre_drive

The problem here is that the existence of negative mass is questionable, and whether we could get enough of it and keep it stable for long enough is even more questionable, however there is a bit of research with some promise going on.

Device creates negative mass particles — and a novel way to generate lasers

I think what is more likely is that we will use cryostasis when it is viable, and a low power method of travel like a solar sail to travel long distances over a long period of time – that is if we even bother to send humans out, it might be more sensible to let AI do this kind of exploration for us.

http://www.planetary.org/explore/projects/lightsail-solar-sailing/what-is-solar-sailing.html