110 years ago today, Albert Einstein published his General Theory of Relativity, which redefined the relationship between matter and gravity. Suddenly, our mysterious universe made a little more sense ...

A new study just added an interesting twist to the complicated history of the physics theory.

BOULDER- Black holes, time travel and E= mc^2. They are all related to Albert Einstein's Theory of Relativity. How many of us, though, can actually explain any of it? This year, Einstein's theory ...

After two eclipse expeditions confirmed Einstein's theory of general relativity, the scientist became an international celebrity. The New York Times Archives / Photo Illustration by Shaylyn Esposito ...

Brown University Physics professor Sylvester J. Gates, Jr. described how scientists found evidence for Albert Einstein’s theory of relativity in a talk at Harvard Wednesday evening. The conversation — ...

Monisha Ravisetti was a science writer at CNET. She covered climate change, space rockets, mathematical puzzles, dinosaur bones, black holes, supernovas, and sometimes, the drama of philosophical ...

A 54-page document handwritten in 1913-1914 by Albert Einstein and Swiss engineer Michele Besso, sold in Paris earlier today for €11.6 million (US$13.0 million). It’s not the most valuable document ...

Physicists searching for a better understanding of quantum gravity stumbled upon something unexpected: the defining ...

Gravity causes galaxies to rotate. Astronomers can study the speed of stars at different distances from the galactic center to look for evidence for dark matter or other new physics. The majority of ...