01:15:10 Bob Savoy: How do you know that the mass of the galaxy cluster is 90% of the mass of the galaxy cluster? 01:15:50 Bob Savoy: Got it! 01:20:57 Lee Brown: Can dark matter be measured by unexplained drag on a spacecraft? 01:24:00 harrini: How do we know the amount of dark energy in a galaxy? 01:28:27 Steve Royal: Replying to "How do we know the a..." Isn't dark matter just what we refer to as empty space? 01:35:20 Bob Savoy: How much of your talk is based on math (which I cannot follow) and how much is speculation? 01:36:21 Bob Savoy: Thank you. 01:36:56 Dale Ghent: Are you aware of today's news from the DESI (Dark Energy Spectroscopic Instrument) program at Kitt Peak. Their Data Release 1 is now available, and they say that early indications may show that dark energy seems to be weakening over tim 01:37:22 Dale Ghent: time* 01:38:41 Oren Whyche-Shaw: Replying to "time*" Really? Will have to check that out. Thanks. 01:38:59 Bob Savoy: Will Gravity Waves improve our understanding? 01:39:33 Oren Whyche-Shaw: Reacted to "Will Gravity Waves i..." with 👍 01:43:11 Lee Brown: thank you 01:43:44 harrini: Thank you 01:45:54 Rutuparna Das: Couple of links: ~ data sonifications: https://chandra.si.edu/sound/ ~ 3d models: https://chandra.cfa.harvard.edu/tactile/ 02:00:37 Vikram: 😃 02:01:09 Ken: Thank you this was fun guys. 02:01:20 Yvonne: Thank you! 02:01:25 Harrini: Thank you! 02:01:35 Krystal Rolon: @Wayne do you want to switch spots next month? 02:01:48 Lee Brown: I am a new member and I want to introduce myself. 02:02:12 Jaime Corrigan: Thanks for the good presentation. 🙂