Now it seems that wormholes, those shortcut tunnels through time and space that Albert Einstein theorized and that science fiction depicts as portals between two distant galactic points, are at the ...

A photon emitted from a star a billion light-years away arrives at a telescope having experienced no time whatsoever. Not ...

The geometry of spacetime forms the very foundation of modern gravitational theory, where the elegant interplay between curvature and matter is described by Einstein’s field equations. In this ...

Add Yahoo as a preferred source to see more of our stories on Google. When black holes collide, the crash generates ripples in the fabric of spacetime—gravitational waves. These distortions travel far ...

Albert Einstein's general theories of relativity have been used to create tiny microscopic robots that can essentially "swim" ...

The original version of this story appeared in Quanta Magazine. At the beginning of time and the center of every black hole lies a point of infinite density called a singularity. To explore these ...

To square Albert Einstein’s General Theory of Relativity with quantum mechanics requires some currently unknown physics, and that’s led some scientists to question if Einstein’s theory could use some ...

A peer-reviewed paper published in The European Physical Journal C presents a modification to Einstein’s general relativity ...