関連ワード:
do all galaxies have black holes in the center do all galaxies have black holes in the middle does every galaxy have a black hole in the center do galaxies have black holes in the center do all galaxies have black holes at their center does every galaxy have a black hole in the centre do most galaxies have black holes at their centers do all galaxies have a supermassive black hole in their galactic center how many galaxies have black holes at their center are black holes always in the center of galaxies
