Hints of evolving dark energy (DESI)
Indicios de energía oscura variable (DESI)
- Date
- 2024-2025 · confidence high
- Place
- Kitt Peak Observatory, Arizona, United States
- Credited to
- DESI Collaboration
- Field
- Cosmos & Earth
⚠️ Disputed: the sources disagree.
What was discovered
The largest three-dimensional map of the universe, with millions of galaxies, suggests that dark energy might be weakening over time, in tension with the cosmological constant of the Lambda-CDM model.
Statistical significance still below 5 sigma; awaiting confirmation.
What it led to
- Revision of the standard cosmological model
- Euclid and Roman missions as a check
Built on
Made possible
- 5,000-fibre robotic spectrograph