One of the themes in the book included Albert Einstein. It mentioned many of his theories. However, the one I kept thinking about is the theory of relativity. My favorite example of this theory is ...

Einstein postulated three ways this theory could be proved ... Leopold Infeld, who worked with Einstein on a book on relativity, suggested, "people were weary of hatred, of killing. . . . Here ...

"The singularity is the most mysterious and problematic part of a black hole. It's where our concepts of space and time ...

After writing a 400-page book on string theory and then helping ... theory will ever be accepted as widely as, say, the theory of general relativity? What would it take for that to happen?

Black hole singularities should not exist, according to theories of quantum mechanics. New tweaks to Einstein's equations of general relativity could finally do away with them, and explain what truly ...

Einstein’s general theory of relativity can be summed up in just 12 words: “Space-time tells matter how to move; matter tells space-time how to curve”. But this short description from the ...

Kurt Hinterbichler reviews Claudia de Rham's first-hand and personal glimpse into the life of a theoretical physicist and the process of discovery.

Dark matter, dark energy, the Hubble tension: underpinning these theories is Einstein’s general theory of relativity, which treats space and time as a unified “spacetime” and considers ...

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.