... Tonight's Sky . ... Searching for Far Out and Wandering Worlds . ... Behemoth black hole found in an unlikely place . Gravitational wave search provides insights into galaxy evolution and mergers . ... black holes . ... Galaxy's gamma-ray flares erupted far from its black hole . ... Theorists expect gamma-ray outbursts to occur only in close proximity to a galaxyт??s central black hole, the powerhouse ultimately responsible for the activity. ... Galaxy's missing gas found in its tail . ...