Universe may already be decelerating, new study suggests
New study challenges dark energy theory, suggesting universe is decelerating.
Why it matters
- Challenges the idea that the universe is accelerating due to dark energy.
- Suggests a new phase of decelerating expansion.
By the numbers
- 300 galaxies studied.
- 99.999% confidence in the effect.
The big picture
- Could change our understanding of the universe's fate.
- Aligns with new models based on BAO and CMB data.
What they're saying
- Some wonder if this means the universe will collapse in a Big Crunch.
- Others joke about the implications.
- Experts may reconsider how we measure cosmic distances.
Caveats
- Findings need confirmation by further studies.
- Relies on correcting a systematic bias in supernova measurements.
What’s next
- Further tests using young supernovae are underway.
- Vera C. Rubin Observatory will provide more data in the next five years.