Universe's expansion 'is now slowing, not speeding up'
16 days ago
- #dark-energy
- #cosmology
- #universe-expansion
- New study suggests the universe's expansion may be slowing, contrary to the long-standing belief in accelerating expansion driven by dark energy.
- Findings challenge the standard ��CDM cosmological model and indicate dark energy may evolve significantly over time.
- Research highlights a systematic bias in type Ia supernovae data due to progenitor star age, affecting cosmological measurements.
- Corrected supernova data aligns better with models from baryonic acoustic oscillations (BAO) and cosmic microwave background (CMB) data.
- Combined analysis of corrected supernova, BAO, and CMB data suggests the universe is currently in a decelerating phase.
- Future observations, including those from the Vera C. Rubin Observatory, may provide more definitive tests of these findings.
- Results could lead to a major paradigm shift in cosmology and a better understanding of dark energy.