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

The tiny bots follow patterns of light and "artificial space-time," navigating like craft following the curved space around a black hole. When you purchase through links on our site, we may earn an ...

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

Researchers have developed a method for steering microscopic swimming robots using light patterns and the principles of Einstein's theory of relativity. The technology is a potential first step toward ...

What does it mean to be to space-time? The seemingly simple question gets to the essence of twentieth-century physics and has driven a hundred-year debate between philosophy and science. In Einstein’s ...

General relativity stands as one of the bedrock theories in modern physics. Its strange view of relative time and space has been confirmed by countless experimental and observational tests, from ...