Buried deep underground, this extraordinary machine has already transformed humanity's understanding of the universe.

Do constants of nature—the numbers that determine how things behave, like the speed of light—change over time as the universe expands? Does light get a little tired traveling vast cosmic distances? It ...

When an invisible entity making up 85% of the universe’s mass stumps the greatest scientific minds of our time, awe is an understandable response. Physicists call it “ dark matter, ” a substance they ...

The world's most powerful particle accelerator will Monday shutter operations for four years of renovations to dramatically boost its collision-capacity and the potential for unlocking one of the ...

UC Santa Cruz physicist Stefano Profumo has put forward two imaginative but scientifically grounded theories that may help solve one of the biggest mysteries in physics: the origin of dark matter. In ...

A mysterious glow of gamma rays at the center of the Milky Way has long hinted at dark matter, but the lack of similar signals in smaller dwarf galaxies has cast doubt on that idea. Now, researchers ...

Tiny highly uniform magnetic fields are known to pervade the universe, influencing various cosmological processes. To date, however, the physical mechanisms underpinning the generation of these fields ...

Possible interactions between dark matter and neutrinos may help explain a persistent mismatch in how cosmic structure evolved.

The world's largest scientific machine—the Large Hadron Collider (LHC) at CERN—has shut down after completing a landmark ...