schwarzes-lochVon Event Horizon Telescope – wikimedia

Von Event Horizon Telescope – https://www.eso.org/public/images/eso1907a/ (image link) The highest-quality image (7416×4320 pixels, TIF, 16-bit, 180 Mb), ESO Article, ESO TIF, CC-BY 4.0, https://commons.wikimedia.org/w/index.php?curid=77925953