The oldest “dead” galaxy known has been discovered

At the moment, astronomers do not know exactly what caused the galaxy, designated JADES-GS-z7-01-QU, to stop forming new stars. Perhaps everything happened faster and more dramatically in the early Universe, or the evolution of galaxies included cycles of transition from star formation to quiescence and extinction, and then back again.At t
Astronomers estimate that the JADES-GS-z7-01-QU galaxy has a relatively low mass, about the same as the Small Magellanic Cloud, which is a satellite of the Milky Way. Other known “extinguished” galaxies in the early Universe are much more massive.