but DESI is primarily meant to study dark energy—as part of the team puts it, “DESI aims to place unprecedented constraints on the equation of state of dark energy, the gravitationally driven ...

"The first box uses a Lambda CDM cosmology, while the second box contains a dark energy equation of state w, which evolves in time." The values of cosmological parameters are based on DESI's year ...

One that has a changeable equation of state (EOS). To match observation ... More information: Xingang Chen et al, Evolving Dark Energy or Evolving Dark Matter?, arXiv (2025).

In both analyses, the researchers found signs of a variation in dark energy’s equation of state, the relationship between its pressure and density over time. “We are pointing at the same concl ...

The phenomenon causing that expansion is known as dark energy — and recently ... of relativity by toying around with mathematical equations. At the time, people, including him, thought that ...

GENEVA, Switzerland — For over two decades, astronomers have been puzzled by the mysterious “dark energy” driving ... of Einstein’s groundbreaking equations when applied to the largest ...

The approach takes cues from the famous Drake Equation, which once guided the search for alien civilizations. This updated model focuses on how the density of dark energy and the pace of star ...

“The discovery of dark energy, nearly 30 years ago, was already the biggest surprise of my scientific lifetime,” said David Weinberg, a professor of astronomy at The Ohio State ...

The new findings come from the Dark Energy Spectroscopic Instrument (DESI), which sits on a telescope at the Kitt Peak National Observatory in the US state of Arizona. "What we are seeing is ...