Dynamical dark energy and the week that broke cosmology
New data from the Dark Energy Spectroscopic Instrument (DESI) suggests that our understanding of the universe's expansion may be fundamentally flawed. The findings challenge the long-standing cosmological constant model proposed by Einstein.
Why it matters
This discovery could force a paradigm shift in physics, potentially requiring a new theory to explain the accelerating expansion of the universe.
The seminar announcement called it “the week that broke cosmology.”
In March of 2025, a paper from the Dark Energy Spectroscopic Instrument (DESI) rocked the cosmology world by presenting tantalizing evidence for a deep, fundamental change to our understanding of the universe.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in