We have been old that everything is moving away from each other. How can we navigate if the reference points are not stationary?
We build space bound crafts with communication systems of today. When they get way out there ‘tomorrow.’ We advance and design our receivers to a operate at a higher sensitivity (happening all the time) so we can ‘hear’ the craft(s) out there further than the technology available when we launched them.
Cool.
That point has been brought up in many sci-fi novels, not the least of which is Asimov’s ‘Foundation’ series.
They simply use their ‘Astronomical Calculators’, i.e. ‘COMPUTERS’, to ‘adjust for time ‘ errors..................
Not exactly. The Milky Way may be moving away from other galaxies, but the stars within it are moving as a unit, albeit a spinning unit.
We have been old that everything is moving away from each other.
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And the space between everything is expanding ... my waistline is a good example ...
Not only that, but "scientists" don't really know where the stars ARE; they know where they WERE. In a lot of cases they only know where they were millions of years ago.
If we know which way most everything is moving, easy to compute reference points.