For a quarter century, cosmologists have treated dark energy as a fixed, featureless pressure that steadily drives galaxies ...

Recent observational breakthroughs are beginning to challenge the long-standing view of dark energy as unchanging. Data from the Dark Energy Spectroscopic Instrument ( DESI ), an advanced survey ...

Observations of the formation of light-nuclei from high-energy collisions may help in the hunt for dark matter.

No, not that Nancy Grace. NASA's newest space telescope, named after the agency's first Chief of Astronomy, is physically ...

The universe is packed with riddles, but few are as stubborn or as fascinating as dark matter. First proposed in 1933 by ...

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

The universe doesn’t revolve around Kitt Peak, but the observatory southwest of Tucson is at the center of what could be the biggest breakthrough in the study of the cosmos in decades. Using an ...

The universe’s expansion might not be accelerating but slowing down, a new study suggests. If confirmed, the finding would upend decades of established astronomical assumptions and rewrite our ...

With contributions from Brown faculty and students, the LUX-ZEPLIN experiment analyzed the largest dataset ever collected by ...

A team of astronomers say they've made the first ever detection of dark matter by examining gamma rays near the center of the Milky Way.

Nearly a century after astronomers first proposed dark matter to explain the strange motions of galaxies, scientists may finally be catching a glimpse of it. A University of Tokyo researcher analyzing ...