When two massive black holes slammed into each other earlier this year, astronomers were able to observe it in the clearest ...

Albert Einstein’s name has become shorthand for genius in theoretical physics. We tend to picture him scribbling equations ...

Einstein's equations have held up remarkably well for over a century. But they leave tantalizing gaps in our knowledge. A spectrogram shows the rising frequency of gravitational waves emitted by a ...

Albert Einstein’s mind reinvented space and time, foretelling a universe so bizarre and grand that it has challenged the limits of human imagination. An idea born in a Swiss patent office that evolved ...

The MICROSCOPE mission tested the weak equivalence principle with free-falling objects in a satellite. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Einstein’s Theory of General Relativity, an immensely important update to Newton's Law of Universal Gravitation, is currently our best approximation of how the universe ticks. But there are some holes ...

Space and time seem like two completely different ideas, but Einstein showed they are interlinked in what is known as ...

A prediction made by Albert Einstein in his theory of general relativity has come true as astrophysicists have detected light coming from behind a black hole. A team of scientists made the analysis ...

As new and powerful telescopes gather fresh data about the universe, they reveal the limits of older theories like Einstein's relativity. When you purchase through links on our site, we may earn an ...

PARIS, FRANCE - NOVEMBER 23: Specialist in the Books and Manuscript department at Christie's, Vincent Belloy poses with the Einstein-Besso manuscript written jointly by Albert Einstein and Michele ...