Quasars

W.M. Keck Observatory - Starlight And The First Black Holes: Researchers Detect The Host Galaxies Of Quasars In The Early Universe:

https://keckobservatory.org/ancient-quasars/

#BlackHoles #Quasars #HSCJ22360032 #HSCJ22550251 #Redshift #Starlight #KeckObservatory #JamesWebb #SpaceTelescope #JWST #NIRSPEC #Astrophotography #Photography #Astrophysics #GalacticAstronomy #InfraredAstronomy #Astronomy

Keith Cooper - Time appeared to move 5 times more slowly in 1st billion years after Big Bang, quasar 'clocks' reveal:

https://www.space.com/quasar-clocks-universe-time-dilation

#TimeDilation #Timekeeping #Time #BlackHoles #QuasarClock #Clock #Quasars #Redshift #GeneralRelativity #Relativity #Astrophysics #Cosmology