On Wednesday, June 11, 2025 at 6:35:31 AM UTC-6 John Clark wrote:
On Wed, Jun 11, 2025 at 8:22 AM Alan Grayson <[email protected]> wrote: *> For distant galaxies we're observing the past, which shows a large redshift, which means a large recessional velocity in the PAST, * *No! We're observing the light from that galaxy NOW, and today space has expanded a great deal more than it had 10 billion years ago when that light was emitted; back then it was ultraviolet, now it's infrared. We are observing how the galaxy looked 10 billion years ago, except that the color is different, however Einstein and Quantum Mechanics can tell us how to color correct for that and get a more accurate picture. * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* *When viewing celestial objects, it's routinely claimed that what we observe, is how something looked in the past. The farther away it is, the further in the past is what the observation reveals. But now you've turned this on its proverbial head; namely, the redshift observed is a measure of its recessional velocity NOW. How are these contradictory interpretations resolved? TY, AG * 7mh -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/15be8333-56c0-422c-8488-ee95308dfb49n%40googlegroups.com.
