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Earth's Core, Hypervelocity Stars & Cosmic Dandruff: #497 - Unraveling the Mysteries Below and Beyond

Earth's Core, Hypervelocity Stars & Cosmic Dandruff: #497 - Unraveling the Mysteries Below and Beyond

Space Nuts: Astronomy Insights & Cosmic Discoveries vor 1 Jahr

This episode is brought to you with help of NordVPN. To get the special birthday deal, visit https://www.nordvpn.com/spacenuts - you'll be glad you did. Space Nuts Episode 497: Earth's Core Dynamics, Hypervelocity Stars, and Cosmic Dust Join Andrew...

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This episode is brought to you with help of NordVPN. To get the
special birthday deal, visit www.nordvpn.com/spacenuts - you'll be
glad you did.

Space Nuts Episode 497: Earth's Core Dynamics, Hypervelocity
Stars, and Cosmic Dust

Join Andrew Dunkley and Professor Jonti Horner in this captivating
episode of Space Nuts as they delve into the intriguing dynamics of
our planet's core, the discovery of a hyperactive star with a
planet, and the fascinating phenomenon of cosmic dust. From the
slowing of Earth's inner core to the implications of interstellar
objects entering our solar system, this episode is filled with
insights that will ignite your curiosity about the universe.

Episode Highlights:

- Earth's Core Dynamics: Andrew and Jonti discuss
the recent findings regarding the Earth's inner core, revealing
that it has been slowing down. They explore how researchers used
data from repeating earthquakes to uncover the complexities of the
core's rotation and its implications for our understanding of
Earth's geology.

- Hypervelocity Stars: The duo introduces the
concept of hypervelocity stars and highlights a newly discovered
star that is moving at an astonishing speed of nearly 2 million
kilometers per hour. They discuss the significance of this find and
its connection to the planet orbiting this remarkable star.

- Cosmic Dust from Neighboring Systems: Andrew and
Jonti explore the idea of "space dandruff," where neighboring solar
systems contribute to the influx of cosmic dust in our own. They
discuss simulations that suggest a million objects from the Alpha
Centauri system are currently passing through our solar system, and
the potential for detecting these interstellar visitors.

- Debate on Planetary Classification: The episode
wraps up with a discussion on a newly discovered object that
challenges the boundaries between planets and brown dwarfs. Jonti
explains the ongoing debate regarding the definitions of these
celestial bodies and how new discoveries are prompting scientists
to reconsider traditional classifications.

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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 Earth's core dynamics and slowing
rotation

10:30 - Exploration of hypervelocity stars and their
implications

18:00 - The phenomenon of cosmic dust from neighboring
systems

26:45 - Debate on planetary classification and the discovery of
Gaia 4B

30:00 - Closing thoughts and listener engagement

️ Episode References

Earth's Inner Core Research

https://www.nature.com/articles

Hypervelocity Stars and Planet Discovery

https://www.space.com/hypervelocity-stars

Cosmic Dust Studies

https://www.sciencedirect.com/science/article/pii/S0019103519302003

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