Dark energy is a mystery so daunting that it stretches and strains our most robust theories. The universe is expanding, ...

The new findings come from the Dark Energy Spectroscopic Instrument (DESI), which sits on a telescope at the Kitt Peak ...

A new image from the Atacama Cosmology Telescope reveals the universe in its infancy, showcasing the Milky Way and cosmic ...

A groundbreaking new dataset containing information on 18.7 million celestial objects —the largest ever assembled—is now ...

Discovering the nature of dark energy may seem an academic exercise for cosmologists, but "nothing short of the fate of the ...

The Dark Energy Spectroscopic Instrument (DESI) is mapping millions of celestial objects to better understand dark energy—the ...

New results from the Dark Energy Spectroscopic Instrument (DESI) suggest that the unknown force accelerating the expansion of ...

If our 13.8 billion-year-old cosmos could be considered middle-aged, researchers note these new images captured around its ...

A European space telescope launched to explore the dark universe has released a trove of new data on distant galaxies.

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

The largest-ever three-dimensional map of the cosmos, plotting out some 15 million celestial objects, could help reveal the ...

And now scientists are getting a little closer to understanding how it behaves. The big question is whether this dark energy ...