StarTalk Radio Cosmic Queries – Multiverses & Wormholes with Brian Cox
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May 10, 2022 
Join Brian Cox, a Professor of particle physics and science communicator, as he joins Neil deGrasse Tyson and Chuck Nice to delve into the cosmos. They discuss the mind-bending inflationary multiverse, revealing the existence of bubble universes governed by different laws of nature. The conversation weaves through the intriguing concepts of wormholes and their time travel possibilities, while tackling quantum entanglement and its effects on our understanding of reality. Prepare for a fascinating journey through the universe's foundational mysteries!
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Gravity's Impact
- The strength of gravity significantly impacts the universe's structure.
- Too strong, everything collapses into black holes; too weak, and nothing forms.
Luminosity and Gravity
- A star's luminosity is highly sensitive to Newton's gravitational constant, raised to the seventh power.
- Slight changes in gravity drastically alter a star's brightness and lifespan.
Varying Physical Laws
- The laws of physics, like the strength of gravity, might vary across different universes in a multiverse.
- This variation is analogous to snowflakes forming differently yet sharing the same underlying structure.