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

Einstein proposed and published his theories of special and general relativity in 1905 and 1915. The concepts are monumental ...

LIGO observatory near Richland confirmed Einstein’s theory of relativity, it also has proven one of Hawking’s theorems.

Space and time seem like two completely different ideas, but Einstein's theory of relativity shows they are interlinked in a ...

From Einstein's theory of relativity to cutting-edge explorations in quantum mechanics, scientists have proposed various theoretical paths to achieve time travel. Although most remain in the realm of ...

Gravitational waves can be described as ripples in the fabric of space-time, generated by the acceleration of massive objects. These waves travel at the speed of light and are often produced during ...

Researchers at Hiroshima University have developed a realistic, highly sensitive method to detect the Unruh effect -- a long-predicted phenomenon at ...

Shubhanshu Shukla recalled being cautious about releasing objects in his initial days on the station. “I had this strange ...

Physicist Albert Einstein famously posited that if he only had an hour to crack a daunting problem, he'd devote 55 minutes to ...

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

Astronomers are trying to determine what caused a series of gamma-ray bursts, the most powerful explosions in the universe, to occur in a single day.

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...