The Universe's Expansion No Longer Makes Sense

The Hubble tension problem is breaking cosmology.
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Cosmology is in crisis. Scientists have argued for decades about how and why the universe is expanding. Now, after careful measurements using multiple methods, the main two don’t add up. What do we do when our measurements of the universe don’t match up with our models? Are all of our theories wrong?

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0:00 Cosmology Is in Crisis
1:09 Universe Expansion
6:28 The Hubble Constant
9:18 Early Universe
11:41 Dark Energy
13:29 The Values Don’t Add Up
17:37 Is the Universe Spinning?

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References:
“A Relation Between Distance and Radial Velocity: Edwin Hubble, 1929”, via adsabs.harvard.edu https://astrumspace.info/distancevelocity
“A Timeline of Cosmological Discoveries”, via cosmology.carnegiescience.edu https://astrumspace.info/cosmic_timeline
“Hubble’s Law and the Expanding Universe” via cfa.harvard.edu https://astrumspace.info/hubblelaw
“Explanation of the Cosmic Distance Ladder”, via uwa.edu.au https://astrumspace.info/distanceladder
“Planck CMB results: Cosmological parameters”, via adsabs.harvard.edu https://astrumspace.info/planck_h0
“The Hubble Tension”, via cerncourier.com https://astrumspace.info/hubbletension
“The Cosmological Constant and Dark Energy”, via ned.ipac.caltech.edu https://astrumspace.info/lambda_cdm
“The Megamaser Cosmology Project”, via iopscience.iop.org https://astrumspace.info/megamaser
“Our Model of Cosmology Might Be Broken”, via livescience.com https://astrumspace.info/broken_univ
“Can Rotation Solve the Hubble Puzzle?”, via academic.oup.com https://astrumspace.info/spinning_univ

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Credits:
Writer: Michelle Babcock
Video Editor: Suhith
Researcher: Shourya Shrivastava
Script Editor: Damaris McColgan
Thumbnail Designer: Peter Sheppard
Publishing Lead: Georgina Brenner
Production Manager: Raquel Taylor
Edit Producer: Poppy Pinnock
Head of Astrum: Jess Jordan
Creator of Astrum: Alex McColgan

With special thanks to:
NASA/ESO/ESA

#Astrum #Space #HubbleTension