The largest-ever 3D map of the cosmos hints that the dark energy that’s fueling the universe’s expansion may be weakening. One community of theoretical physicists expected as much. Physics; ...

Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday.

“Dark energy” is a term scientists use to refer to whatever is causing the universe to expand faster over time. We don’t know exactly what dark energy is—no one has ever directly seen or measured ...

The research team found that the statistical significance of the dynamical dark energy model has reached a 4.3σ confidence level—just shy of the 5σ "gold standard" but strongly corroborated by ...

Dark energy is one of the most mysterious features of our universe – we don’t know what it is, but it controls how the universe is expanding, as well as its ultimate fate.

Called the Dark Energy Spectroscopic Instrument, it uses a telescope based in Tucson, Arizona to create a three-dimensional map of the universe's 11-billion-year history to see how galaxies have ...

The Dark Energy Spectroscopic Instrument is atop the National Science Foundation’s Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory in Tucson, Arizona.

Dark energy makes up roughly 70% of the universe, yet we know nothing about it. Around 25% of the universe is the equally mysterious dark matter, leaving just 5% for everything that we can see and ...

He's a member of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX), is studying dark energy from an earlier time in the universe's existence than DESI.HETDEX is also focused on sound ...

Since its discovery in 1998, dark energy has been considered a cosmological constant, an unchanging force explaining the acceleration of the Universe's expansion. However, recent results from the Dark ...

Dark energy is commonly thought to be a weak anti-gravity force which acts independently of matter and makes up around two-thirds of the mass-energy density of the universe.

Space Dark energy bombshell sparks race to find a new model of the universe ‘Shocking’ results from a major astronomical study have raised doubts about the standard model of cosmology, forcing ...