Has JWST shown the Universe is TWICE as old as we think?!
Dr. Becky・16 minutes read
The universe may be 26.7 billion years old according to Gupta's research, which challenges the current accepted age of 13.8 billion years, proposing a hybrid model to better fit JWST data with adjustments to physical constants. The study highlights discrepancies in the current Lambda CDM model, suggesting a crisis in cosmology and underscoring the importance of platforms like Brilliant for learning math and science concepts.
Insights
- Gupta's research proposes an older universe model, doubling the current age estimate to 26.7 billion years, aiming to reconcile discrepancies in current models and accommodate observations from the JWST.
- The study introduces a hybrid model combining expansion and tired light hypothesis, addressing issues with galaxy and black hole growth in the early universe, although it overlooks some established cosmological observations, sparking skepticism about its validity.
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Recent questions
How old is the universe?
26.7 billion years
What is the Lambda CDM model?
Best model explaining universe's features
What is the JWST?
James Webb Space Telescope
What is the tired light hypothesis?
Part of Gupta's hybrid model
What is Brilliant?
Website and app for interactive learning
Related videos
Summary
00:00
"Universe's Age Doubled: Gupta's Hybrid Model"
- Research paper from Gupta at the University of Ottawa claims the universe is 26.7 billion years old, double the current accepted age of 13.8 billion years.
- Study motivated by JWST (James Webb Space Telescope) finding galaxies at vast distances, suggesting they existed when the universe was much younger than previously thought.
- Gupta's solution involves exploring different universe models to better fit JWST data, proposing an older universe and considering light travel time.
- Current best model of the universe is Lambda CDM, explaining cosmic microwave background, galaxy distribution, dark matter, dark energy, and expansion.
- Lambda CDM faces issues, including discrepancies in calculating the universe's age, leading to a crisis in cosmology.
- Accepted age of the universe is 13.8 billion years, derived from Lambda CDM fit to cosmic microwave background.
- Gupta's research introduces a hybrid model combining expansion and tired light hypothesis, adjusting physical constants for a better fit to JWST data.
- Hybrid model suggests the universe is older than previously thought, recalibrating redshift to travel time calculations.
- Hybrid model resolves issues with massive galaxies and supermassive black hole growth in the early universe.
- Gupta's research overlooks some observations like cosmic microwave background and big bang nucleosynthesis, raising skepticism about the proposed model's validity.
15:09
"Brilliant: Interactive Math & Science Lessons"
- Brilliant is a website and app that sponsors the video, offering interactive lessons in math, science, and computer science, including a course on astrophysics and cosmology, allowing users to practice math skills and take quizzes to match their level.
- The video mentions the importance of Brilliant for learning and practicing math skills, especially in geometry, to understand concepts like the changing surface area of galaxies in an expanding universe, offering a free 30-day trial and a discount on an annual premium subscription for the first 200 users who sign up through the provided link.
