Deep Astronomy - Mystery of Ultra Diffuse Galaxy with NO Dark Matter Solved

https://www.youtube.com/watch?v=yXQwr7BhzOM From Jun 7, 2019. In this episode, remember that ultra diffuse galaxy I told you about in SFNs 226 and 232?  You know, the one with NO dark matter?  Well turns out there is dark matter there after all.   This was always a controversial finding, back in SFN 226 I reported that the group who found Dragonfly 44, an ultra diffuse galaxy with very little dark matter in it, had also taken a closer look at another galaxy, NGC1052-DF2 and wrote a paper, in Nature of all places, announcing that according to their observations, this galaxy rotated just like a galaxy would if it had no dark matter at all in it.   We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs.  Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too!  Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations.  Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].