Add Yahoo as a preferred source to see more of our stories on Google. The Mayall 4-meter Telescope at the Kitt Peak National Observatory houses the DESI instrument ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe’s greatest mysteries. The most widely accepted theory currently suggests ...

Astronomers have combined nearly 2,900 exploding stars into the largest standardized supernova dataset yet assembled, and the result deepens a problem for the model that has anchored cosmology for a ...

Our current cosmological model—known as lambda cold dark matter, or ΛCDM—relies on hypothesized dark energy to explain the accelerating expansion of the universe. However, one competing theory known ...

Dark energy remains among the greatest puzzles in our understanding of the cosmos. In the standard model of cosmology called the Lambda-CDM, it is accounted for by adding a cosmological constant term ...

Physicists propose that a mysterious force known as early dark energy could solve two of the biggest puzzles in cosmology and fill in some major gaps in our understanding of how the early universe ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. For more than a century, physics has been built on ...

Add Yahoo as a preferred source to see more of our stories on Google. A render of a dark energy universe from NASA's Goddard Space Center. (Credit: NASA) Astronomers at the Center of Applied Space ...

The original version of this story appeared in Quanta Magazine. For those who see the world as a dark place, the universe seems to offer little solace. According to current estimates, approximately 70 ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Ask most astronomers, and they’ll tell you that dark matter and dark energy make up more than 95 percent of the universe and that they are the explanations for many of the large-scale phenomena we ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe's greatest mysteries. The most widely accepted theory currently suggests ...