For years, astronomers have searched for the origins of ultra-high-energy cosmic rays, the most powerful particles in the universe. These energetic travelers move at nearly the speed of light, packing ...

A strange energy source at the center of the Milky Way may be a new type of dark matter. Scientists found that hydrogen gas ...

Scientists suspect lightweight dark matter might ionize hydrogen in the Milky Way’s core. This could also explain the 511-keV ...

However, much closer to home, you can actually build your own cloud chamber and see cosmic ray trails yourself for about $100! Here’s instructions. What do we know about cosmic rays, and what remains ...

Learn more about this new form of dark matter, which may positively charge hydrogen clouds.

The Milky Way's Central Molecular Zone (CMZ), is unlike most of the galaxy. Almost 80 percent of its dense gas is held there, ...

At the CERN laboratory in Switzerland, particle physicist Jasper Kirkby studies the link between aerosols, cosmic rays and cloud formation, using the data to inform climate models. “It’s ...

A new study suggests lighter dark matter particles may explain mysterious energy signals and ionised hydrogen clouds observed ...

These cosmic rays produce secondary, high-energy electrons and positrons ... were being pushed in different directions by the ...

In a recent study published in the Journal of Geophysical Research: Atmospheres, scientists from Los Alamos National ...

This NASA/ESA Hubble Space Telescope reveals clouds of gas and dust near the Tarantula ... once considered little more than an annoyance: cosmic dust. For many years, astronomers thought of ...

Want to see cosmic rays? You might need a lot of expensive exotic gear. Nah. [The ActionLab] shows how a cup of coffee or cocoa can show you cosmic rays — or something — with just the right ...