The Universe is the stage for titanic collisions between massive objects, generating waves that propagate through the fabric ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Einstein’s equations look simple on paper but when physicists follow them to their logical end, the universe becomes far ...

For close to a century, scientists have been trying to marry Albert Einstein’s General Theory of Relativity and quantum theory—our two best bets on understanding the universe on a macroscopic and ...

Why do we call the people in our families relatives? It is because they exist relative to us and us to them. Most of the time we see ourselves as the star in our own stories and others as planets ...

Vatican Observatory scientists Fr. Gionti and Fr. Galaverni reveal new insights into General Relativity, showing Jordan and ...

Fr. Gabriele Gionti, S.J., and Fr. Matteo Galaverni continue to produce new mathematical insights into Albert Einstein’s ...

A Star Trek–inspired idea by Miguel Alcubierre kicked off decades of theory and experiments as scientists pursue plausible ...

Physicists have demonstrated with unprecedented accuracy that the speed of light remains constant. In 1887, a landmark physics experiment was carried out by American researchers Michelson and Morley.

Not Albert, his son Hans. As far as we know, Albert was right about his General Theory of Relativity and other natural laws.

Quantum theory fails to explain how the reality we experience emerges from the world of particles. A new take on quantum ...

The gravitational wave is a prediction of the general theory of relativity that can be detected by measuring the relative ...