Studies suggest that the universe's expansion is decelerating — but what could that mean for the future of the cosmos?

A mysterious force called Dark Energy might be changing, in a way that challenges our current understanding of the nature of ...

Last year, we reported on an exciting hint of new physics in the first data analysis results from the Dark Energy Spectroscopic Instrument (DESI)—namely that the dark energy, rather than being ...

Data on dark energy weakening over time may signal that if the trend continues it could eventually cause the universe to collapse, according to a new study. Mustapha Ishak-Boushaki, a physics ...

They believed that the indefinite expansion would spread the stars so far apart that the sky would appear dark throughout and ...

After five years of mapping the sky in 3D - an area that stretches from Earth's front porch to about 11 billion light-years away - researchers at the ...

The universe's expansion may be accelerating faster than previously thought. Dark energy, a mysterious force, might not be constant but could be changing over time. Multiple independent studies show ...

The Mayall 4-meter Telescope at the Kitt Peak National Observatory houses the DESI instrument. KPNO/NOIRLab/NSF/AURA/P. Marenfeld Gravity pulls us to earth, a lesson ...

The U.S. National Science Foundation Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory (KPNO), a Program of NSF NOIRLab, beneath streaking star ...

Lawrence Berkeley National Lab, or Berkeley Lab, researchers mapped nearly six million galaxies throughout the past 11 billion years of cosmic evolution using the Dark Energy Spectroscopic Instrument, ...

An international consortium of scientists studying dark energy said Tuesday their three-dimensional map of the universe over 11 billion years suggested the cosmos wasn't steadily expanding, but acting ...

Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought.See an excerpt of an interview in the video aboveAstronomers know ...