Science Art: Hubble Confirms Existence of Massive Black Hole at Heart of Active Galaxy, by Holland Ford, et al. (5/25/1994)
From the image’s archive.org page:
… Read the rest “Science Art: Hubble Confirms Existence of Massive Black Hole at Heart of Active Galaxy, by Holland Ford, et al. (5/25/1994)”A schematic diagram of velocity measurements of a rotating disk of hot gas in the core of active galaxy M87. The measurement was made by studying