A galaxy without dark matter explained?! | Night Sky News November 2020

Have we finally explained the mystery of NGC 1052-DF4, the galaxy that doesn't have any dark matter?! Plus for 50% off your first month of any subscription crate from KiwiCo (available in 40 countries!) head to https://kiwico.com/DrBecky50 Follow Dr Mireia Montes on Twitter:   / mireiamontesq   You can now watch the lecture by Dr. Victoria Kaspi here:    • The 20th Hintze Lecture 'Fast Radio Bursts...   Bochenek et al. (2020) - https://arxiv.org/pdf/2005.10828.pdf Montes et al. (2020) - https://arxiv.org/pdf/2010.09719.pdf 00:00 - Introduction 00:48 - Spotting the Moon, Planets & Pleiades 03:29 - Geminids Meteor Shower 05:46 - OSIRIS-REx was leaking 08:50 - Fast Radio Bursts from magnetars? 12:22 - A galaxy with no dark matter explained? 19:13 - Interview with Dr. Mireia Montes 27:01 - KiwiCo 28:57 - Bloopers ---- 📚 "Space: 10 Things You Should Know": http://bit.ly/SpaceDrBecky 📚 US & Canada version: "Space at the speed of light" (same book, different title): https://www.penguinrandomhouse.com/bo... 📚 German translation "Das kleine Buch vom großen Knall" : https://www.dtv.de/buch/becky-smethur... --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! -- The artwork in the background is a scientifically accurate map showing the orbits of more than 18000 asteroids in the Solar System, created by Eleanor Lutz. Find out more and buy one here: https://eleanorlutz.com/mapping-18000... --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford. I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk