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

At Aalto University in Finland, two physicists believe they may have cracked a puzzle that has defied generations of ...

Einstein’s strangest optical illusion has been captured—thanks to lasers, a cube, and a bit of artistic inspiration.

Physicists have demonstrated the Terrell-Penrose effect, which causes an object moving close to the speed of light to warp ...

In a bold step toward solving one of science’s most puzzling problems, researchers have proposed a new way to bring gravity ...

Machine learning helped show how harnessing the weird effects of Einstein’s special relativity could enable a new kind of ...

IN an attempt to treat gravitational and electromagnetic phenomena simultaneously within the framework of the special theory of relativity, it has been suggested 1 that the Maxwell-Lorentz ...

Research from Aalto University could bring together the four fundamental forces of nature under a singular framework ...

He knew that his 1905 special relativity theory applied only to the relationship between a body at rest and a body moving at a constant velocity. What about bodies moving at changing velocities?

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

This is the central consequence of Albert Einstein's special theory of relativity. The object then has a different length than when it is at rest, and time passes differently for the object than ...