Syzygy is produced by Chris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York.Find us on Twitter: @syzygypod twitter.com/SyzygyPodOr just visit us at home: syzygy.fmEmily at the University of York: www.york.ac.uk/physics/people/brunsden/Chris online: kipstewart.comTo view the podcast chapter list and artwork in this episode, you could do worse than use the Overcast app on iOS, or Pocket Casts on Android. (Other podcast players are available, though they may not handle mp3 chapters nicely.)Some of the things we talk about in this episode:• This week’s black hole paper: http://science.sciencemag.org/content/early/2018/06/13/science.aao4669• A good article about the story: https://www.sciencealert.com/arp-299-supermassive-black-hole-tidal-disruption-event-relativistic-jet-direct-image• Black holes: what are they, exactly? A basic primer: https://www.nasa.gov/audience/forstudents/k-4/stories/nasa-knows/what-is-a-black-hole-k4.html• A bit more detail: https://en.wikipedia.org/wiki/Black_hole• Want to blow your mind? Star Size Comparison 2: https://www.youtube.com/watch?v=GoW8Tf7hTGA• Prof. Andrea Ghez looks at the supermassive black hole at the of the Galaxy: https://www.youtube.com/watch?v=2Y9_g4b1PlA• Prof. Ghez’s group: http://www.galacticcenter.astro.ucla.edu• Galaxy collisions: https://phys.org/news/2016-10-galaxies-collide.html• Gravitational singularities: https://www.universetoday.com/84147/singularity/• Stephen Hawking: http://www.hawking.org.uk• John Archibald Wheeler:  https://en.wikipedia.org/wiki/John_Archibald_Wheeler