For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and ...

For a quarter century, cosmology has rested on a simple but audacious idea: that a fixed “cosmological constant” drives the ...

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

Findings from the Dark Energy Spectroscopic Instrument (DESI) suggest that dark energy could be evolving over time. If they're right, cosmology will need a new model. When you purchase through links ...

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, ...

The scientists realized that these supernovae weren’t as nearby as they had thought, so they had zipped away from Earth quicker than expected. “These observations led scientists to ultimately conclude ...

Dark energy, a mysterious force that scientists believe is behind the accelerated expansion of the universe, is weakening — which could result in the universe over the course of billions of years ...

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 ...

Researchers have presented new measurements that account for half of the universe’s hydrogen gas — which had previously been regarded as “missing” in cosmic scientific discourse. The study was ...

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 ...