Does Dark Matter Exist? Stacy McGaugh (#284)

Into the Impossible With Brian Keating

Brian Keating

Science, Physics, Natural Sciences

4.7 • 1.1K Ratings

🗓️ 29 December 2022

⏱️ 68 minutes

🔗️ Recording | iTunes | RSS

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Summary

Stacy McGaugh is an American astronomer and professor at Case Western Reserve University in Cleveland, Ohio. His primary focus has been in physics problems related to the distribution of matter and the dynamics of galaxies. He's a proponent of Modified Newtonian Dynamics (MOND), which tweaks our understanding of gravity to allow galaxies to form and move without the need of a traditional dark matter halo. The theory was originally published in 1983 by Israeli physicist Mordehai Milgrom. MOND has been effective at predicting the behavior of some galaxies, like the Dwarf Spheroidals attached to Andromeda, however it has yet to explain some anomalies like the collision of the Bullet Cluster. In cases with high gravitational lensing and little ordinary matter the theory has been shown to break down. Stacy discusses successes of his approach to astrophysics and what can be improved on in the future. https://twitter.com/DudeDarkmatter http://astroweb.case.edu/ssm/ Connect with Professor Keating: 🏄‍♂️ Twitter: https://twitter.com/DrBrianKeating 📸 Instagram: https://instagram.com/DrBrianKeating 🔔 Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 📝 Join my mailing list; just click here http://briankeating.com/list ✍️ Detailed Blog posts here: https://briankeating.com/blog.php 🎙️ Listen on audio-only platforms: https://briankeating.com/podcast Subscribe to the Jordan Harbinger Show for amazing content from Apple’s best podcast of 2018! https://www.jordanharbinger.com/podcasts Can you do me a favor? Please leave a rating and review of my Podcast: 🎧 On Apple devices, click here, https://apple.co/39UaHlB scroll down to the ratings and leave a 5 star rating and review The INTO THE IMPOSSIBLE Podcast. 🎙️On Spotify it’s here: https://open.spotify.com/show/2G3PRMUhxGQkyQzLiiCqlf?si=8656119458df4555 🎧 On Audible it’s here : https://www.audible.com/pd/Into-the-Impossible-With-Brian-Keating-Podcast/B08K56PXJX?action_code=ASSGB149080119000H&share_location=pdp&shareTest=TestShar Other ways to rate here: https://briankeating.com/podcast Support the podcast on Patreon https://www.patreon.com/drbriankeating or become a Member on YouTube- https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	One of the biggest
0:05.0	one of Bea's favorite stories was that when she first showed the
0:10.0	flat rotation curve of Andromeda toita to Alan Sandage.
0:13.7	He said, well, that's just the effect of looking at a really bright galaxy.
0:18.8	And she was like, what does that mean?
0:22.1	And it means that even really smart people say some pretty silly things when they're
0:27.0	confronted with evidence that they don't get. So Vera went out and observed a hundred more galaxies and they all did the same thing.
0:34.0	Okay, that's what the universe does.
0:36.3	We believe what Einstein and Newton taught us and it has to be some form of invisible mass.
0:41.9	But it's an assumption, a really good assumption, that what they
0:44.9	taught us is right, but what if it's not? Hello and welcome to another excitingly dark episode of the Into the
0:59.3	Impossible podcast, His Eye, your formerly fearful host, now more optimistic, Brian Keating, Chancellor's Distinguished
1:06.7	Professor at Physics at University of California, San Diego, and today I'm talking with a professor
1:11.0	at my alma mater at my undergraduate institution the renowned institution
1:16.5	known as case Western reserve university one of the longest names for one of the best
1:20.8	known universities that there is.
1:23.6	I got my start there 30 years ago,
1:26.2	a proud graduate of that fine institution.
1:28.8	And today we're talking with Professor Stacy McGaugh,
1:31.4	who is one of the foremost proponents of an alternative to a paradigm
1:34.5	that has been dominating the universe of at least theoretical and experimental cosmologist
1:39.6	for 40, 50, 60, 70 years now.
	...

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