12:50
PBS Space Time
The Doomsday Argument
A simple statistical argument tells us that the doom of our species is much, much closer.
The Crisis in Cosmology
PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.
The Crisis in Cosmology
Season 5 Episode 9 | 13m 17s | CC
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.
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