Modern physics stands on two pillars: Einstein’s theory of relativity and the Standard Model of particle physics. The theory of relativity encompasses the gravitational force, one of the four ...

Albert Einstein had described the special theory of relativity in 1905. The result of Einstein's thinking about light, this theory introduced brand-new ideas to science. It opened up an entire ...

“If you ask kids to show you what ... For his part, Einstein never quite knew what hit him. “I never understood why the theory of relativity with its concepts and problems so far removed ...

On 25 November 1915, Albert Einstein presented his general theory of relativity at the Prussian Academy of Sciences. This theory is still considered to be the most important idea in modern physics.

For more than a century, Albert Einstein’s General Theory of Relativity has provided a surprisingly accurate framework for ...

Researchers say they may have achieved Einstein's vision of a "unified field theory" that can unite two of nature's ...

This effect, predicted by Einstein’s theory of general relativity, helps astronomers study galaxies from the... A new study has put forward a black hole model that eliminates the central ...

"One sees in this paradox the germ of the special relativity theory is already contained," Einstein wrote in his "Autobiographical Notes." This "special" theory applies to certain relationships ...

During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String ...

Einstein's theory of general relativity suggests that the "memory" of ancient events, such as black hole mergers, may be etched into the fabric of space-time by gravitational waves. New research shows ...

Using the mathematics of Einstein's 1915 theory of gravity, called general relativity, scientists can model the interior of a black hole. The problem is that, when they do this, general relativity ...