The bold question-askers at What If look at how Einstein’s theories help us understand time loops in the modern era.

For over 100 years, two theories have shaped our understanding of the universe: quantum mechanics and Einstein’s general ...

Discover how Einstein’s theory of special relativity reshaped physics by linking space, time, mass, and energy in a universe governed by the speed of light.

Important to any analogy is an understanding of its limitations. Some flaws are obvious: A balloon is small enough to fit in ...

A new theory from a University of Alaska Fairbanks scientist suggests a bold idea: that time—not space—might be the true ...

A researcher throws cold water on a recent effort that purported to eliminate black holes' greatest and most enduring mystery ...

Access other dimensions was always in the imaginary of every scientist and science fiction lover. But what if we could ...

Henri Bergson, on the other hand, was widely misunderstood in the years succeeding the debate from the evening of 6 April, ...

A new, testable theory proposing three-dimensional time as the "primary fabric of everything" could help unify quantum ...