Program: GN-2020B-FT-108

We have searched the Pan-STARRS data base for candidate z>6 quasars coincident with bright radio sources in the ongoing VLA Sky Survey (VLASS). This search revaled a remarkable object, VLASS J022608.9+791018: a radio galaxy with an apparent FR-I morphology coincident with a Pan-STARRS i-band dropout. If the source is indeed at z>~6, the extended emission spans ~100 kpc, the existence of such a large radio source in the early universe is a challenge to formation models. Additionally, VLASS J022608.9+791018 would prove a revolutionary probe of the local IGM through HI 21-cm absorption spectroscopy, measurements of Faraday rotation in its extended radio lobes, and through a comparison between the lobe pressures and the IGM pressure. We propose Gemini-N/GMOS longslit spectroscopy of the Pan-STARRS counterpart to measure its redshift and determine its nature.