Overview
The "Beasts in the Bubbles" program aims to confirm redshifts and measure star-formation rates, stellar masses, and dust extinction for the five most luminous galaxies at 9 These massive, luminous galaxies, observed only 500 million years after the Big Bang, serve as ideal tracers of primordial dark matter structures. Their existence at these early times challenges the current paradigm of early galaxy formation and evolution. This program will reveal how these remarkable cosmic beasts rapidly built up their stellar mass. The key scientific goals of the program include deriving record-breaking redshifts for rare, ultra-bright galaxies through the detection of optical emission lines, confirming the power-law nature of the bright-end of the 9Scientific Goals