A dark point inside a beam of light should not be much of a traveler. Yet in a new experiment, some of those points appeared ...

Albert Einstein postulated in his 1905 theory of special relativity that the speed of light in a vacuum is constant. Ever ...

Physicists have taken quantum strangeness to an extraordinary new level by measuring light across 37 dimensions. Their groundbreaking experiment pushes quantum mechanics beyond classical expectations, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. In a mind-warping milestone experiment, scientists have been able to ...

When a star dies, it generates an explosion of elemental nuclei and hurls them into space. Those elements, called cosmic rays ...