Now, could something be "transformed" into light, enabling it to travel huge distances at near-or actual light speed..........I don't know!
Greater minds than ours are contemplating the universe as we speak.......
We know its possible to transfer information with light........obviously.......but actual people, or spaceships............Sounds iffy to me.
I think it would probably be easier to turn someone into sub-atomic particles then to turn them back into a correctly formed human.