For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

Einstein's theory of general relativity is our best description of the universe at large scales, but a new observation that reports a "glitch" in gravity around ancient structures could force it to be ...

New study proposes using atomic clocks to probe the intersection of quantum mechanics and general relativity in spacetime.

Long and winding road: The Juice space probe taking the long way to Jupiter and its moons - Copyright NASA/AFP/File NASA Long and winding road: The Juice space probe ...

Einstein’s uncle Jakob was an inventor in Munich. He produced patents for arc lamps, electric meters, and dynamos in the late ...

A Hiroshima University team has designed a feasible way to detect the Unruh effect, where acceleration turns quantum vacuum ...

Scientists propose that gravitational waves shaped the universe. Their model challenges inflation theory. How exactly did the ...

Believe it or not, the quantum vacuum... isn't completely empty. It has tiny vibrations or “sparks” of energy. If an object ...

As a massive black hole located 55 million light-years from Earth, the black hole at the center of M87 has a mass equivalent ...

Some random article came up on google for me about how there is a new attempt to reconcile both QM and Relativity through some space time dimension field. The point being that wouldn't such a theory ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The id ...

Access more than 20 years of online content Manage which e-mail newsletters you want to receive Read about the big breakthroughs and innovations across 13 scientific topics Explore the key issues and ...