On Earth, the cardinal directions are straightforward. The arrow on a compass points to the nearest magnetic pole. You can then use it to travel anywhere on Earth.
In space, the idea of anything being “central” enough to be used as a “North” (since the universe has no center) or being fixated enough to not somehow pose issues is more convoluted.
If you were a pioneer of space exploration, what would your “North” be?
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Earth, obviously. Or rather, where we think we left it…
By the time intergalactic navigation is relevant we’ll have likely dismantled Earth. The vast majority of it is just sitting there generating gravity, a huge waste of its potential.
Collapse imminent in minus 3 minutes. Please vacate floor -14839.