Gregory's ServerThe expansion of the universe stretches time as well as space: A new study of distant quasars shows that their clocks appear to be ticking just 1/5th as quickly as our clocks here. https://theconversation.com/astronomers-see-ancient-galaxies-flickering-in-slow-motion-due-to-expanding-space-208621 #science #cosmology #nature
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@coreyspowell I'd been wondering what Geraint (@Cosmic_Horizons) was up to. Hoping at some point he starts posting on Mastodon rather than twitter. |
Full study here: "Detection of the Cosmological Time Dilation of High Redshift Quasars"
It's a fascinating reality check that goes back to basics and asks, How can we be sure the expansion of the universe is real and not an illusion?
https://arxiv.org/abs/2306.04053 #astronomy #astrodon