If you were the boss of a group of intergalactic explorers, what would you use as the "North" on the space compasses?
Ashelyn @ Ashelyn @lemmy.blahaj.zone Posts 3Comments 308Joined 2 yr. ago
Ashelyn @ Ashelyn @lemmy.blahaj.zone
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We could assign it to any point within a recognizable region in the Cosmic Microwave Background, which would probably be the most universally-applicable reference available. One just needs to be able to filter out the noise from surrounding celestial bodies. The CMB does slowly change over time, but so too does the position of stars within galaxies and galaxies relative to one another.