When an object moves extremely fast—close to the speed of light—certain basic assumptions that we take for granted no longer ...

The James Webb Space Telescope has revealed a rare "Einstein ring," revealing two distant galaxies in an optical illusion ...

When an object moves extremely fast – close to the speed of light – certain basic assumptions that we take for granted no longer apply. This is the ...

Albert Einstein had described the special theory of relativity in 1905 ... starfields during the eclipse and compared the photos with those of the same starfield taken when the sun was not ...

Quantum ideas describe particles and fields in tiny packages, but general relativity paints gravity as smooth curves in space ...

Researchers have developed a new quantum theory of gravity which describes gravity in a way that's compatible with the Standard Model of particle physics, opening the door to an improved understanding ...