The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...

See how Relativity's Terran 1 rocket got from the 3D printer to the launch pad in these highlights. Credit: Relativity Space ...

For the first time, physicists have simulated what objects moving near the speed of light would look like — an optical ...

The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test ...

What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...

Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...

Einstein’s theory of relativity reshaped our understanding of time space and gravity But deep inside its equations lies a ...

Black holes are so strange that physicists have long wondered if they are quite what they seem. Now we are set to find out if ...

Gravitational waves are energy-carrying waves produced by the acceleration or disturbance of massive objects. These waves, ...

This Star Trek concept ignited a dream that humans could one day travel faster than the speed of light. Now physicists are ...

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

Scientists said the warp drive, once considered to be purely hypothetical, is slowly edging toward legitimate physics.