Tootfinder

Hot #cosmology papers ...
The Perfect Host - JWST Cepheid Observations in a Background-Free SN Ia Host Confirm No Bias in Hubble-Constant Measurements: https://arxiv.org/abs/2509.01667
Glimmers in the Cosmic Dawn - On the Photometrically Determined Black Hole Mass to Stellar Mass Relation Across Cosmic Time: https://arxiv.org/abs/2508.15905
The coherent satellite velocity field around the interacting spiral galaxy pair NGC5713/19 - signature of two galaxy groups merging: https://academic.oup.com/mnras/article/542/1/62/8215207?login=false
Looking beyond lambda: https://arxiv.org/abs/2509.00359

I was reading somewhere an explanation for why the night skies are not totally whited out by the brazillions of galaxies and stars in the universe. Spoiler: it’s cuz some of them are so far away their light hasn’t reached us yet, and some are moving away from us so their light will be mega-redshifted. So if a star or galaxy is far enough away & moving away from us, will it wink out at some point when it zooms beyond the threshold?