A discussion of Messier 70 to kick off a description of Gravothermal Catastrophe. More links and info in full description ↓↓↓ Watch our videos on all the Messier Objects: http://bit.ly/MessierObjects Sorry for the Catastrophic typo! Featuring Professor Mike Merrifield from the University of Nottingham. https://twitter.com/astromikemerri Discuss this video on Brady's subreddit: https://redd.it/amo9ny Deep Sky Videos website: http://www.deepskyvideos.com/ Twitter: https://twitter.com/DeepSkyVideos Facebook: http://www.facebook.com/DeepSkyVideos More about the astronomers in our videos: http://www.deepskyvideos.com/pages/contributors.html Supported by the University of Nottingham Back us on Patreon: https://www.patreon.com/deepskyvideos Video by James Hennessy and Brady Haran