Gravitational distortions produced by distant galaxies show a slight—but notable—disagreement with Einstein's predictions.

Here we explore what the theory of general relativity is and how it affects space-time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

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 ...

Scientists test the famous physicist’s predictions by calculating the distortion of time and space. Why is the expansion of ...

For the first time, a mathematical framework proves that Einstein’s theory of general relativity, which explains the ...

This book provides an excellent introduction and survey of the Kerr space-time for researchers and graduate students across the spectrum of observational and theoretical astrophysics, general ...

More than seven years after it was founded in a Seattle co-working space, Relativity Space launched its first 3D-printed rocket on a test mission that began with a ...

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.

Relativity Space isn’t the first company to realize 3D printing in metal could be a revolution for rocket engine design. During the reveal of the Dragon V2 in 2014, SpaceX CEO Elon Musk ...

Tim Ellis, cofounder and CEO of Relativity Space, is competing against SpaceX in the booming space launch business and reinventing manufacturing in the process. Relativity CEO Tim Ellis on the exc ...