Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

Scientists are on the trail of a mysterious five-particle structure that could challenge one of the biggest theories in physics: string theory. This rare particle—never seen before and predicted not ...

"If we see the lampshade effect in action, it will tell us about what dark matter could be, which is exciting." ...

Because it doesn't interreact with light or electromagnetism, dark matter exists to us only through its influence on visible ...

Dark matter is a real pain in the neck. The term dark matter itself refers to a hypothetical substance that seems to solely ...

Despite decades of searching, scientists still haven’t found the elusive substance that holds galaxies together: dark matter.

Scientists have never directly detected dark matter, but some wonder if one high-energy detection in 2023 could be a rare ...

Angular momentum is a fundamental quantity in physics that describes the rotational motion of objects. In quantum physics, it ...

Another clue about the whereabouts of the missing matter in the Universe has just emerged from amid the largest local cosmic ...

The invisible dark matter is one of the universe's biggest mysteries, and its existence is confirmed only by the ...

Dark matter could be the result of fermions pushed into a warped fifth dimension. This theory builds on an idea first stated in 1999, but is unique in its findings. Dark matter makes up 75 percent ...

How the pioneering scientist, and namesake of an enormous new telescope, forced astronomers to rethink the universe.