New evidence AGAINST dark matter?!

A research study was recently published with evidence in favour of an alternate theory of gravity that doesn't need dark matter. Let's take a look shall we?! To learn more about dark matter go to http://brilliant.org/DrBecky and sign up for free. The first 200 people that go to that link will get 20% off the annual premium subscription.

All animations by Megan Smethurst Graphic Design: https://megansmethurstdesign.wixsite....

Read the research study here: Chae et al. (2020) - https://iopscience.iop.org/article/10...

Check out my previous video on all the evidence we have for dark matter from the past century:    • All the evidence we have for dark mat...  
And this one where I look at the other possible alternate theories of gravity:    • Was Einstein "wrong"? | Testing new t...  

00:00 - Introduction
01:34 - MOND recap
02:02 - Rotation curves of galaxies
03:49 - Problems with MOND
05:17 - The Equivalence Principle
06:48 - The External Field Effect (EFE)
07:11 - Evidence for EFE
08:20 - What does this mean for dark matter?
10:54 - Bloopers!

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👩🏽‍💻 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