The ghostly blue flame stunned researchers when it first showed up unexpectedly in a laboratory experiment. Now scientists have determined the structure of this “blue whirl.” Four separate types of ...

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The strong nuclear force may abruptly loosen its grip on the fundamental particles that make up matter at a special “critical ...

The strong force binds quarks inside neutrons and protons, and holds atomic nuclei together. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. But ...

Physics, especially the part about forces and motion, often feels like a maze of confusing concepts and formulas. If you’ve ever stared at a problem about an object moving or a force acting and ...

There may be a fifth fundamental force of the universe that we haven’t documented yet — and, according to new research, our best bet of uncovering it may not lie in deep space, but in objects ...

Two physicists in the US have come up with a way to use a “bubble” of ultracold atoms to measure extremely small forces. The scheme, which has yet to be tested experimentally, involves monitoring the ...