These two properties of axions mean that they are exceptionally good at collapsing down to incredibly high densities, pulled together by their own (slight) gravity. Essentially, they can form a kind ...

Physicists know from previous experiments that what happens at the nuclear scale to protons and neutrons also affects their ...

Neutrinos are some of the most abundant particles in the universe, and they are everywhere. Every second, more than 6 ...

When Eric Sun and Jennifer Liu, avid travelers who met in college, decided to marry, there was one continent left on their ...

like the top quark. But otherwise, it would be largely invisible, interacting with normal matter only occasionally. But searches for WIMPs have failed to find anything. That's fine; nature is ...

Dark matter can't be too heavy or it might break ... That's in the range of the heaviest known particles, like the W boson and the top quark. For decades, theorists favored this mass range because ...

Carnegie Mellon University's Professor Curtis Meyer and his research colleagues explore an uncharted world inside protons and ...

Researchers have been working for decades to understand the architecture of the subatomic world. One of the knottier ...

His research has focused on understanding the quark-gluon plasma, a state of matter theorized to have existed just microseconds after the Big Bang. “As you go back to about six microseconds after the ...

The rate of top quark pair production stayed constant, no matter the time of day. This means that no preferred direction was found in space-time, and Lorentz symmetry remained intact.