If gravity arises from entropy, scientists could unite Einstein's general relativity with the quantum realm while shedding light on dark matter and dark energy.

Einstein worked on his theory of gravity, collaborating with mathematician Marcel Grossman. In 1915, he published four papers on general relativity. The central idea of his work was that mass and ...

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

Einstein’s big idea was the strange concept of space-time - the notion that space and time are woven together, and become distorted by objects with mass. Ten years before general relativity ...

In reinventing relativity, Einstein also reinvented nothing less ... the speed of light—the object would appear to be gaining mass. And the greater its velocity—in other words the more energy ...

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 ...

While relativistic effects are well-understood ... The tunability is based on the mechanism known as mass-energy equivalence (from Einstein's famous equation E=mc²), which means that changes ...

Einstein’s general theory of relativity can be summed up in just ... that falling objects accelerated at the same rate regardless of their mass. Famously, a feather and a hammer dropped from ...

Under Einstein's theory of general relativity, objects with mass distort space and time—much like how your mattress would deform if you placed a bowling ball on your bed. This deformation of the ...