Phil Halper (aka Skydivephil) | Astronomy Debate: Dark Matter or Modified Gravity? @PhilHalper1 | Uploaded January 2024 | Updated October 2024, 1 week ago.
Two of the world's leading cosmologists debate whether anomalous measurements in astronomy, like the rotation and motions of galaxies, imply we need to involve an invisible substance known as dark matter or a modification of our fundamental laws pf physics. With :
Simon White, Emeritus Director at the Max-Planck Institute for Astrophysics and
Stacy McGaugh, Professor of Astronomy, Case Western Reserve University
For our other hosted debates see here: youtube.com/watch?v=AUyylR5RPZw&list=PLJ4zAUPI-qqoZl9JuEiLHjVDLkQQ6Y4KB
for Stacy's blog, see here:
tritonstation.com

A timeline of the film is below.

0:00 Introduction
1:56 Simon's story
4:03 Stacy's story
6:30 Evidence for dark matter
21:09 Stacy case for MOND
30:40 "I agree with Stacy"
41:12 The Lampost effect
52:00 dark matter sub halos
1:00:35 missing satellites
1:14:00 bullet cluster
1:22:40 CMB
1:30:00 Are both theories right?
1:41:04 wide binaries and Gaia
1:45:30 other problems for LCDM
1:50:42 Sociology of science
1:57:15 Looking to the future