From Twitter https://twitter.com/: Dont let the name fool you...black holes are anything but empty space. Rather, it is a great amount of matter packed into a very small area...sort of like those #BlackFriday stores. Learn more: https://science.nasa.gov/astrophysics/focus-areas/black-holes?utm_source=TWITTER&utm_medium=NASA&utm_campaign=NASASocial&linkId=45102661 #BlackHoleFriday https://twitter.com/NASA/status/933948549963935744/photo/1 https://chirp.cooleysekula.net/attachment/43808