Age of the Universe vs Age of the Stars

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SUMMARY

The discussion centers on the concept of varying ages of celestial objects and the speculation that our universe may exist within an "outer universe." Participants emphasize that such theories lack empirical support and caution against accepting news articles as scientific evidence. Notably, the Methuselah star's age, which appears to exceed the universe's age, raises significant questions among cosmologists. Ongoing research by astronomers is crucial for establishing accurate age measurements of cosmic entities.

PREREQUISITES
  • Understanding of cosmology and the Big Bang theory
  • Familiarity with astronomical age determination methods
  • Knowledge of the concept of bubble universes
  • Awareness of current debates in astrophysics regarding stellar ages
NEXT STEPS
  • Research the methodology behind age determination of stars, focusing on techniques like stellar evolution models
  • Explore the implications of the Methuselah star's age on cosmological theories
  • Study the concept of bubble universes and their relevance in modern cosmology
  • Investigate recent scientific literature on the expansion of the universe and its observational evidence
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Astronomers, astrophysicists, students of cosmology, and anyone interested in the complexities of the universe's age and structure.

Benfield
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TL;DR
Universe within universe
Recently a news article stated objects found in the universe have different ages, could it be that our universe is inside an already existing universe and that is why it is able to expand so easily.
 
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Benfield said:
Summary: Universe within universe

Recently a news article stated objects found in the universe have different ages, could it be that our universe is inside an already existing universe and that is why it is able to expand so easily.
It's difficult to make any sense of that. In general news items don't qualify as science.
 
He is probably speculating about a bubble universe. We have no way of testing this theory as far as I know and this forum is only about accepted knowledge.
 
I have a different age than you - but that doesn't imply anything about cosmology.

We know the expansion is not a motion of objects through space because that wouldn't fit to observations. No, we are not expanding inside an "outer universe", there is no such thing.
 
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There was a recent article about the age of the Methusalah star that appears to be older than the universe causing some consternation among cosmologists.

https://www.forbes.com/sites/starts...-appear-older-than-the-universe/#63bc38323c44
Before we can even begin speculate about your question we need to have really good numbers for the age of things in the universe and that is the ongoing work of astronomers and cosmologists today.

https://www.skyandtelescope.com/astronomy-resources/age-of-the-universe/
 
PeroK said:
It's difficult to make any sense of that. In general news items don't qualify as science.
Thank you I shall delete my membership always a pleasure.
 
mfb said:
I have a different age than you - but that doesn't imply anything about cosmology.

We know the expansion is not a motion of objects through space because that wouldn't fit to observations. No, we are not expanding inside an "outer universe", there is no such thing.
Thanks awfully account is being deleted to make room for the iluminati
 
PeroK said:
In general news items don't qualify as science.

Particularly when there's not a single reference to an actual scientific paper in the entire article.
 
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Benfield said:
Thank you I shall delete my membership always a pleasure.
Benfield said:
Thanks awfully account is being deleted to make room for the iluminati
We don't appreciate trolls here at the PF. Bye.
 
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