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 ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

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 ...

Bigger, Reusable Heavy-Lift Rockets. Since the very first orbital missions of Sputnik and Yuri Gagarin, space exploration has ...

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

In 1999, Belgian physicist Chris Van Den Broeck implemented a minor alteration to Alcubierre’s concept by shrinking the ...

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.

New research has uncovered an unexpected flaw in Einstein’s theory of relativity — a gap that no one had the tools to detect ...