However, that isn’t what scientists see. Instead, stars orbit at about the same speed regardless of their distance from the galactic center. You might see this referred to as the "Galaxy Rotation ...

Matter and antimatter should have completely wiped each other out eons ago, leaving the Universe a very empty place.

At one-one-thousandth of a second after the Big Bang, the great annihilation event should have wiped out all matter, leaving a universe of only radiation. Why still don't know why ...

Charge-parity violation is thought to explain why there’s more matter than antimatter in the universe. Scientists just spotted it in a new place.

Why matter dominates over antimatter in our universe has long been a major cosmic mystery to physicists. A new finding by the ...

Physicists have made a landmark discovery, uncovering the first clear evidence that matter particles, known as baryons, ...

That poses a problem for physicists: if matter and antimatter both were created equally in the Big Bang and behaved in the same way, as most physical laws suppose, then it’s difficult to explain ...

"We needed a machine like the LHC capable of producing a large enough number of beauty baryons and their antimatter counterparts, and we needed an experiment at that machine capable of pinpointing ...