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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 the both the basic and incredibly complex sides of space and time.

Stories

December 12, 2017
Space Time explores the outer reaches of space, the craziness of astrophysics,...
December 12, 2017
Space Time explores the outer reaches of space, the craziness of astrophysics,...
December 11, 2017
Space Time explores the outer reaches of space, the craziness of astrophysics,...
December 4, 2017
Space Time explores the outer reaches of space, the craziness of astrophysics,...
November 29, 2017
November 6, 2017

Episodes

Season 5
Invisible to the naked eye, our night sky is scattered with the 100s of billions of...
Season 5
Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples?...
Season 5
The search for a single number: the hubble constant, which is the rate of expansion of...
Season 5
The foundations of quantum theory rests on its symmetries. For example, it should be...
Season 5
Astronomers are the worst at naming things. Dark energy AND dark matter? Who can remember...
Season 5
There’s this idea that beauty is a powerful guide to truth in the mathematics of physical...

Specials

What happens when matter can’t get any denser yet somehow does? The answer - it becomes...
Did all of dark energy just vanish? A team of scientists have just analyzed new data and...
Is our universe a definitive single reality or is it merely one within an infinitely...
Elon Musk’s SpaceX program proposes that 100 people could be sent to colonize Mars within...
Primordial black holes may be lurking throughout our universe. How large are they, how...
The Hubble Telescope found more evidence of vast plumes of water bursting through the icy...
Albert Einstein strongly disagreed with Niels Bohr when it came to Bohr’s interpretation...
We’ll soon be capable of building self-replicating robots. This will not only change...


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Blast off into the cosmos with astrophysicist Matt O'Dowd.