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PBS Space Time
The Universe Has Been Expanding Since the Big Bang. Just Not How We Thought.
Season 11
Episode 32
Last year, DESI made headlines when its map of the Universe suggested dark energy, the force driving cosmic expansion, might not be constant. Now, the Dark Energy Survey (DES) has released its final results. Do they confirm DESI’s findings? More importantly, why are different scientific studies far more powerful together than alone? The answer gets to the heart of how science works.
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18:32
Dark matter has eluded us for many decades but we may be able to discover more now.
15:35
What do you get if you combine something that’s infinitely massive and negative infinitely massive?
16:35
Is there a limit to how much energy you can cram into, or pull out of one patch of space?
11:43
Gravitational tsunamis exist and we’re on the verge of being able to detect them.
18:40
Will we ever become a Kardeshev Type-1 civilization and how can we get there?
14:05
New data is telling us that Neutron stars may make one of the most popular dark matter candidates.
16:08
Here’s the story we like to tell about the beginning of the universe.
17:44
We’ve never seen a TDE in the Milky Way, but we’ve seen them in distant galaxies.