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0:00:00 - Introduction
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Classroom Contents
The Hubble Tension - Understanding Cosmological Discrepancies and Universe Expansion
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- 1 0:00:00 - Introduction
- 2 0:00:50 - Welcome to Alex Filippenko
- 3 0:03:58 - The Most Important Lesson of Science
- 4 0:06:47 - The Hubble Tension
- 5 0:12:04 - Measuring the Expansion Rate of the Universe
- 6 0:23:31 - How far out can we measure?
- 7 0:27:10 - Galaxies with Type 1A Supernovae and Cepheids
- 8 0:32:57 - Cosmic Distance Ladder Summary
- 9 0:37:30 - The Universe's Expansion Rate Today
- 10 0:47:20 - How can we be certain the measurements are correct?
- 11 0:51:00 - CMB and using Theoretical Models to Extrapolate the Expansion Rate
- 12 1:00:57 - Positive outcomes to this tension
- 13 1:02:14 - Filippenko's thoughts on the position of Wendy Freedman's recent paper
- 14 1:14:09 - Will the Cepheid data set remain at 42?
- 15 1:16:55 - Filippenko's thoughts on the Hubble tension
- 16 1:22:40 - How Cosmology became a precision science
- 17 1:25:11 - Is Inflation a Falsifiable Theory?
- 18 1:29:30 - Filippenko's view of Inflation and the Multiverse
- 19 1:31:08 - Filippenko's view of Cyclic Inflation and Steinhardt and Penrose's theories
- 20 1:35:15 - Falsifiable Aspects of Inflation
- 21 1:41:54 - Discovering the Accelerated Expansion of the Universe
- 22 1:47:54 - Filippenko's thoughts on Saul Perlmutter's team's analysis methods
- 23 1:50:47 - Filippenko's reaction to the initial discovery
- 24 1:59:04 - Thoughts on Dark Energy and the Great Rip
- 25 2:01:58 - Conclusion
- 26 2:03:16 - Credits
