Cosmic Powerhouses: Exploring Active Galaxies and Quasars

New channel Jason Kendall: title sample judged 'whole' (A former college astronomy instructor posting rigorous lecture-style videos and derivations covering a full intro astrop); passed a second screen for sellers/exam-prep/re-uploads; 3 of 3 sampled transcripts showed teaching, 0 not; every title checked strictly; oEmbed verified.