Is there a multiverse?

The quest for a theory of everything – explaining all the forces and particles in the universe – is arguably the holy grail of physics. While each of our main theories of physics works extraordinarily well, they also clash with each other. But do we really need a theory of everyt ...  Show more

What’s the difference between a living collection of matter, such as a tortoise, and an inanimate lump of it, such as a rock? They are, after all, both just made up of non-living atoms. The truth is, we don’t really know yet. Life seems to just somehow emerge from non-living part ...  Show more

Sean Carroll is creating a profoundly new approach to sharing physics with a broad audience, one that goes beyond analogies to show how physicists really think. He cuts to the bare mathematical essence of our most profound theories, explaining every step in a uniquely accessible ...  Show more

Claudia de Rham has rather an unusual relationship with gravity.While she has spent her career exploring its fundamental nature, much of her free time has involved trying to defy it - from scuba diving in the Indian Ocean to piloting small aircraft over the Canadian waterfalls. H ...  Show more

'Black holes have become one of the liveliest areas of theoretical research. By thinking about these cosmic objects, using quantum theory and relativity, theorists are clarifying our understanding of information, gravity and the other fundamental forces of nature. Stanford Univer ...  Show more

String theory, the fabric of spacetime, the multiverse, quantum mechanics, and much more – explore the cosmological mysteries of the universe with Neil deGrasse Tyson, comic co-host Chuck Nice, and theoretical physicist Sean Carroll.
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