AAVSO Webinar, with Dr. Christian Knigge and François Cochard
1:14:49
AAVSO webinar, with Dr. David Whelan (Austin College)
1:26:18
Paula Szkody on Cataclysmic Variables — an overview
2:08:03
Brian Greene and Leonard Susskind: Quantum Mechanics, Black Holes and String Theory
1:14:57
Getting Ready for the Next Galactic Supernova
1:25:24
Understand photometric transforms & filters with Brian Kloppenborg
1:33:01
528Hz, Destroying unconscious blockages, Healing Frequency, Cleanse Negative Energy #31
21:29
What if you just keep zooming in?
51:24