Episode 18: M13 Hercules

Chris and Mr Max are back under a starry sky. The search for the shin bone continues, a crunchy substitute is found, and we consider the summer constellation of Hercules - the hero with the flailing limbs, which contains the beautiful cluster M13. M13 was the target for the Arecibo message, which you can see here: https://www.seti.org/seti-institute/project/details/arecibo-message.

There's a glorious Hubble image of the cluster here : https://esahubble.org/images/opo0840a/ (You can see the blue stragglers) and some nice images through amateur telescopes here: https://www.skyatnightmagazine.com/advice/what-see-through-telescope/