PBS Space Time
tv show

415 total episodes
-
12 seasons
First Aired February 11, 2015
Genres:
Overview
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.

What If The Cosmological Constant Is NOT Constant?
Season 2024 - Episode 26 - 0h 18m
Air Date
October 10, 2024
Overview
We know that the universe is getting bigger. And we know that the speed that the universe is getting bigger is also getting bigger. The standard assumption is that the acceleration rate is itself constant, which will surely result in ultimate heat death. But a recent survey of primordial sound waves frozen into the way galaxies are sprinkled through the universe reveals that this fate is now in question.