If these knots had a slight bias toward matter over antimatter, their unraveling could help explain the matter-antimatter ...

A gamma ray glow at our galaxy’s center has puzzled scientists for almost two decades. New computer simulations back the ...

Real particles are lumps of energy that can be "seen" or detected by appropriate instruments; this feature is what makes them ...

Such an exponential expansion may seem minor, but it is equivalent to a grape in the palm of your hand swelling to become ...

An excess of gamma rays in the center of our galaxy could mean scientists have finally detected dark matter particles—or not ...

At the heart of the Milky Way, a faint and widespread glow of gamma rays has puzzled astronomers for decades. The light could ...

"It's possible we will see the new data and confirm one theory over the other — or maybe we'll find nothing, in which case it ...

Dark matter makes up about 85 percent of all matter in the universe. It neither emits nor absorbs light, making it invisible ...

New simulations tilt the scales for competing theories about excess gamma ray light at the center of the galaxy ...

Physicists found signs of a key shift in nuclear matter, a potential "tipping point." The study narrows where the strong ...

For over a decade, a dim but persistent glow near the center of the Milky Way has confused astronomers. This mysterious ...