The most energetic particles in the universe – ultrahigh-energy cosmic rays – likely come from supermassive black holes in the hearts of nearby active galaxies, says a study by scientists from nearly ...

At times, the sun ejects energetic material into space, which can have consequences for space-based and even ground-based ...

An overabundance of antimatter in showers of charged particles that bombard Earth called cosmic rays could reveal the secrets of dark matter, the universe's most mysterious "stuff," a new study ...

You can't see, feel, hear, taste or smell them, but tiny particles from space are constantly raining down on us.

Spencer Axani, assistant professor in the Department of Physics and Astronomy, is the inventor of CosmicWatch, a portable, ...

"WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting ...

Once a surprise to physicists, these particles are useful tools inside and outside the realm of particle physics.

The handheld particle detector CosmicWatch is roughly the size of a box of animal crackers. Every time a muon passes through ...

Particles raining down from space offer 3-D views inside swirling tropical storms. Muons created from cosmic rays that smash into Earth’s upper atmosphere have revealed the inner workings of cyclones ...

The 10,000-year-old remnant of a supernova 2,600 light years away is acting like a giant particle accelerator, and it’s flinging cosmic rays out across the galaxy — like the Large Hadron Collider on ...

CHICAGO (Reuters) - Ultra-high energy cosmic rays -- particles that pack the punch of a rifle shot -- make their way to Earth from massive black holes in nearby galaxies, scientists said on Thursday, ...