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PBS Space Time
What If Dark Energy is a New Quantum Field?
Season 8
Episode 24
What is Quintessence? Well we know that something is up with the way the universe is expanding - there’s some kind of anti-gravitational effect that’s causing the expansion to accelerate. We don’t know what it is - just that it competes against the inward-pulling effect of gravity. We call this mysterious influence dark energy. But, what is dark energy, really?
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16:08
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17:44
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16:51
Let’s talk about quantum gravity experiments that can be done here on Earth!
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What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
17:02
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Can we change the color of a black hole?
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Learn about Nobel laureate Roger Penrose's idea of how consciousness is caused by quantum processes.
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So you’ve decided to jump into a black hole...