5 days ago

Black Holes, Light Speed & Oceanic Exoplanets: #498 - Diving Deep into Your Space Queries |...

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Space Nuts Episode 498: Reflections in Space, Holographic Theories, and Liquid Planets

Join Andrew Dunkley and Professor Jonti Horner in this engaging Q&A edition of Space Nuts, where they tackle some of the most thought-provoking questions from our listeners. From the possibility of seeing our own reflection in space to the intriguing theory of a holographic universe, and the concept of entirely liquid exoplanets, this episode is packed with fascinating insights that will expand your understanding of the cosmos.

Episode Highlights:

- Seeing Our Reflection in Space: Tony's question sparks a discussion on the challenges of capturing a reflected image of the Milky Way galaxy. Jonti explains the complexities of gravitational lensing and how light behaves in the presence of massive objects, revealing why a clear reflection is beyond reach.

- The Holographic Universe: Charles asks about the theory that suggests we might live in a holographic universe. Andrew and Jonti delve into the philosophical implications of this theory, touching on string theory and the nature of reality, while pondering the boundaries between science and philosophy.

- Black Holes and Light: David's inquiry leads to an exploration of light's behavior around black holes. The duo discusses whether a black hole can accelerate light beyond its speed, clarifying the fundamental principles of light speed and gravitational effects.

- Liquid Exoplanets: Duncan raises the intriguing possibility of an entirely liquid exoplanet. Jonti shares insights into the conditions necessary for such a planet to exist, the role of atmospheric pressure, and how it relates to the formation of planets in our universe.

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Stay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.

00:00 - Introduction to the episode and topics

02:15 - Discussion on seeing our reflection in space

10:30 - Exploring the holographic universe theory

18:00 - Insights into black holes and light behavior

26:45 - The concept of entirely liquid exoplanets

30:00 - Closing thoughts

✍️ Episode References

Gravitational Lensing Explained

https://www.space.com/gravitational-lensing (https://www.space.com/gravitational-lensing)

Holographic Universe Theory

https://www.sciencedirect.com/science/article/pii/S0370157317303410 (https://www.sciencedirect.com/science/article/pii/S0370157317303410)