Pbs Space Time
@pbsspacetime·3.5M subscribers·445 videos
The Crisis in Cosmology
Posted
January 24, 2019
Views
1,105,540
Likes
20,416
Comments
2,500
Engagement
2.07%
January 24, 2019
1,105,540
20,416
2,500
2.07%
Every word spoken in this episode is indexed. Type any phrase to jump straight to the moment it was said.
Type any word or phrase that may have been spoken. Click a result to seek the player to that exact moment.
Try a name, a topic, or a quoted line
18:05Now PlayingPBS Member Stations rely on viewers like you. To support your local station, go to
↓ More info below ↓
Check out the new Space Time Merch Store!
Support Space Time on Patreon
The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent methods have refined its measurement to unprecedented precision. The only problem is that they don’t agree. This calls into question some of our most basic assumptions about the universe.
Tweet at us! @pbsspacetime
Facebook: facebook.com/pbsspacetime
Email us! pbsspacetime [at] gmail [dot] com
Comment on Reddit
Help translate our videos!
Previous Episode: Why String Theory Is Wrong
Hosted by Matt O'Dowd
Written by Matt O'Dowd
Graphics by Luke Maroldi
Directing by Andrew Kornhaber
In 1929, Edwin Hubble discovered the universe. He gave us our first incontrovertible proof that there are galaxies outside the Milky Way by measuring the distances to the spiral nebulae. They were many millions of light years from us –far outside the Milky Way and so must be galaxies in their own right. Combined with the Doppler-shift velocity measurements of Vesto Slipher, Hubble revealed that the galaxies are not only receding from us, but they are receding at a rate proportional to their distance.
Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:
Big Bang
Anton Lifshits
CoolAsCats
David Nicklas
Fabrice Eap
Juan Benet
Justin Lloyd
TIm Davis
Quasar
Dean Fuqua
James Flowers
Mark Rosenthal
Tambe Barsbay
Vinnie Falco
Hypernova
Chuck Zegar
Danton Spivey
Donal Botkin
Edmund Fokschaner
Jens Theisen
John Hofmann
Jordan Young
Joseph Salomone
Mark Heising
Matthew O’Connor
Thanks to our Patreon Gamma Ray Burst Supporters:
Alexey Eromenko
Antonio Ruiz
Bradley Jenkins
Brandon Labonte
Buruk Aregawi
Carlo Mogavero
Daniel Lyons
David Behtala
David Crane
David Schmidt
Dustan Jones
Geoffrey Short
Greg Weiss
Jack Frosch
James Hughes
James Quintero
Jinal Doshi
JJ Bagnell
John Webber
Jon Folks
Jonah
Joseph Emison
Josh Thomas
Kenneth F Leonard
Kevin Warne
Kyle Hofer
Malte Ubl
Mark Vasile
Nathan Hitchings
Nicholas Rose
Nick Virtue
Richard Broman
Sammy J
Scott Gossett
Sigurd Ruud Frivik
Tommy Mogensen
سلطان الخليفي
Sentinel Indexing in Progress
Metadata and chapters are available. Claim extraction for this episode is pending.
All video content is delivered via YouTube embedded players in accordance with the YouTube Terms of Service. Sentinel provides research tools that promote discovery and accountability across political media.
