Terence Tao continuing history’s cleverest cosmological measurements
February 23, 2025
1,525,984
57,421
2,006
3.89%
Search the Record
IndexedEvery 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
3blue1brown Episodes Around February 23, 2025
See what was published immediately before and after this episode.
25:35Now PlayingTerence Tao continuing history’s cleverest cosmological measurements
Chapters
YouTube Description
as posted by the channelHow we know the distances to the planets, stars, and faraway galaxies.
Instead of sponsored ad reads, these lessons are funded directly by viewers
FAQ with added details and corrections
An equally valuable form of support is to simply share the videos.
Terry and his collaborator Tanya have an Instagram about the cosmic distance ladder
Artwork of Guillaume Le Gentil by Kurt Bruns
Artwork of Antonia Maury and Henrietta Leavitt by Talia Gershon
Several of the great cosmological animations where by Paul Dancstep
Timestamps:
------------------
These animations are largely made using a custom Python library, manim. See the FAQ comments here:
All code for specific videos is visible here:
The music is by Vincent Rubinetti.
------------------
3blue1brown is a channel about animating math, in all senses of the word animate. If you're reading the bottom of a video description, I'm guessing you're more interested than the average viewer in lessons here. It would mean a lot to me if you chose to stay up to date on new ones, either by subscribing here on YouTube or otherwise following on whichever platform below you check most regularly.
Mailing list
Links & Promotions
Guests & Subjects Covered
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.









