Is gravity fundamental to the universe? Neil deGrasse Tyson and Chuck Nice explore quantum physics, the fourth dimension, whether H2O is water, and the manyworlds interpretation with theoretical cosmologist Janna Levin, PhD.

Is space infinitely elastic? If spacetime is a particle at the smallest scales, is there space between spacetime? We get philosophical: is H2O water? We explore the quantization of space, Planck lengths, and whether gravity is an emergent feature of quantum physics. Is gravity a fundamental feature of the universe?

What would you see in the earliest parts of the Big Bang? We explore how you could rewrite relativity as particle field theory and the geometry and topology of the universe. Learn about the time Einstein let his driver give a talk for him and how the 1919 eclipse changed physics forever.

We break down the fourth dimension, compactifying space, and Lorentz boosts. Do physics and math view spacetime differently? Neil and Janna discuss the manyworlds interpretation and whether it’s trying to make classical sense of something nonclassical. Plus, we explore how quantum teleportation would work. Is the universe in a superposition? Are black holes fundamental particles?

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Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic cohosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!

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00:00 Introduction: Janna Levin
5:12 Astronomy in NYC
7:12 MindBlowing Science
12:05 Can There be Space Between Space?
15:00 Is Gravity Fundamental?
18:10 What Does a Planck Length Tells Us?
22:10 Einstein’s Driver Giving a Lecture &
26:05 The Topology of the Universe
30:25 Lorentz Boost & Why is the Fourth Dimension Time?
35:30 The Many Worlds Interpretation
42:22 Black Hole’s Passage of Time
44:30 Quantum Teleporting a Molecule
47:30 Black Holes As Fundamental articles
48:50 A Cosmic Perspective