(via PBS Space Time) The mystery of what happens when we go from a superposition to a definite state is known as the Measurement Problem, and it’s arguably the most mysterious outstanding problem in ...

In quantum mechanics, particles do not behave like everyday objects. Instead of existing in one clearly defined state, they can occupy several possible states at once, a phenomenon known as ...

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The most precise measurement yet of how fast the Universe is expanding shows we have a real and serious problem on our hands.

Experimental physicist David Weld’s experimental research interest lies in a question that has been around for a long time, but which we’re only now approaching the ability to investigate. “There’s a ...

New research suggests time could hold the key to resolving mysteries of gravity, quantum mechanics, and other phenomena in ...

WE TEND to think that the three biggest problems with the standard model of particle physics are how it struggles to include gravity, the absence of a good dark matter candidate and (to some of us, at ...

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works extremely well in its own domain: Quantum theory explains how atoms and ...