What did the team of scientists discover using the James Webb Space Telescope?

Ancient galaxies more developed than expected.

How does the Hubble parameter indicate the universe's behavior?

Expansion and contraction in a continuous cycle.

Name: "This Universe Existed before The Big Bang" ft. Roger Penrose
Uploaded: 2024-05-14T16:03:41.783Z

The recent discovery by a team of scientists challenges established beliefs about the universe's origins, questioning the traditional understanding of the Big Bang theory and suggesting a more complex and dynamic cosmic history.
Various theories, including conformal cyclic cosmology and the cyclic model proposed by Penrose, present alternative perspectives on the universe's cyclical nature, with ongoing debates and experiments exploring concepts like eternal inflation, the Multiverse theory, and the big bounce theory to redefine our comprehension of the cosmos.

What did the team of scientists discover using the James Webb Space Telescope?
Ancient galaxies more developed than expected.
Who were the scientists that revolutionized the understanding of the universe's expansion before the early 1900s?
Vesto Slifer and Edwin Hubble.
What concept suggests the universe undergoes cycles of expansion and contraction?
Conformal cyclic cosmology.
How does the Hubble parameter indicate the universe's behavior?
Expansion and contraction in a continuous cycle.
What theory proposes a universe undergoing slow contractions instead of rapid expansions?
The big bounce theory.

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On September 1st last year, a team of 16 scientists published a paper that challenged existing knowledge about the universe.
Using the James Webb Space Telescope, they observed ancient galaxies that appeared more developed than expected.
This discovery questions the traditional understanding of the universe's origins and the Big Bang theory.
Before the early 1900s, scientists believed the universe was static until Vesto Slifer and Edwin Hubble's observations revealed its expansion.
General relativity supports the idea of the universe originating from a singularity, leading to the Big Bang.
Cosmic inflation, a rapid expansion phase, offers insights into the universe's structure and galaxy formation.
Observations hint at a time before 10^-32 seconds when the universe underwent cosmic inflation.
The concept of conformal cyclic cosmology suggests the universe goes through cycles of expansion and contraction.
The Hubble parameter indicates the universe's expansion and contraction in a continuous cycle.
Time is perceived differently based on motion, with different entities experiencing their "now" slices at varying angles in SpaceTime.

15:28

Penrose proposes a cyclic model of the Universe where it restarts endlessly from one big explosion to the next, making it challenging to pinpoint the beginning or end of The Big Bang. This model suggests that most of space is continuously inflating, producing Quantum fluctuations that perpetuate inflation, leading to the concept of eternal inflation and the Multiverse theory where infinite universes with varying characteristics exist.
Recent events, like the bicep 2 group's claim of detecting Cosmic gravitational waves, have raised doubts on aspects of the Multiverse theory. This has prompted a reevaluation of foundational assumptions, with some theorists exploring the big bounce theory as an alternative to the Big Bang. The big bounce theory proposes a universe undergoing slow contractions instead of rapid expansions, leading to a cyclic Universe with experiments underway to test these theories and potentially reshape our understanding of the cosmos.