Re:Post-Detection SETI Protocols and METI: The Time Has Come...
by evanb on Saturday February 11, 2017 @06:22PM
(#13625467)
Objects far apart from one another move at relatively greater speeds after accounting for the expansion of the universe simply because there's new space getting created in between. Nothing moves faster than light relative to its local surroundings.
Objects can move relatively at greater speeds than light when you account for the expansion of the universe.
Other hypothetical modes of transportation such as wormholes, hyperspace or quantum slip space allow you to take shortcuts but often there will be travel time involved.