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Jupiter's Giant Leap, Gravity's Infinite Debate & Cosmic Queries: #478 Q&A

Jupiter's Giant Leap, Gravity's Infinite Debate & Cosmic Queries: #478 Q&A

Space Nuts: Astronomy Insights & Cosmic Discoveries vor 1 Jahr

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26:58

Space Nuts Episode #478 Q&A

Join Andrew Dunkley and Professor Fred Watson in this engaging
Q&A edition of Space Nuts as they tackle intriguing questions
from listeners worldwide. From the massive size of Jupiter to the
nature of gravity and the mysteries of the universe's accelerating
expansion, this episode is packed with cosmic conundrums and
insightful discussions.

Episode Highlights:

- Jupiter's Massive Growth: Dive into the fascinating story
of why Jupiter grew to such a colossal size compared to other
planets. Explore the role of gas accretion, planetesimals, and the
runaway growth effect in shaping the largest planet in our solar
system.

- The Nature of Gravity: Examine the intriguing question of
whether gravity is finite or infinite. Discover the complexities of
gravitational waves, the stiffness of Space, and how these concepts
influence our understanding of gravity's reach.

- The Night Sky in Earth's Early Era: Imagine standing on
Earth when it first formed and ponder what the night sky would have
looked like. Understand how the universe's expansion and the
redshift of the Big Bang's light affect our cosmic view.

- The Fate of Comets: Consider the life cycle of comets and
whether they can lose enough material to become nothing. Learn
about the trails of dust left behind and their connection to meteor
showers.

- Solar Panels at Night: Explore the possibility of
generating solar power at night using light from stars and the
moon. Delve into the limitations of current technology and the
potential for future innovations.

- The Universe's Accelerating Expansion: Discuss the
acceleration of the universe's expansion and whether it is constant
or variable. Contemplate the implications for our understanding of
dark energy and the structure of the universe.

For more Space Nuts, including our continually updating newsfeed
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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 - This is a Q and A episode where we let the audience set the
agenda

01:19 - Why did Jupiter grow to such a massive size compared to
other planets

07:30 - Dean in Queensland has a question about whether gravity is
infinite or finite

12:00 - Dean: We really don't understand gravity. Well, it'll be
when quantum gravity really comes of age

13:50 - Professor Fred Watson answers a few quick fire questions
via text message

14:22 - Given the night sky seems fairly full of stars to the naked
eye today

18:26 - Could you develop solar panels that work at night by
collecting energy from other stars

20:04 - Daniel asks whether the rate of acceleration is constant or
ever so slightly variable

25:49 - The Space Nuts podcast group Facebook page has thousands of
members

️ Episode References

Scientific American article on Jupiter's growth

https://www.scientificamerican.com/article/why-was-jupiters-rapid-growth-spurt-delayed-for-millions-of-years/

Nature Astronomy journal

https://www.nature.com/natastron/

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