In 1959, physicists James Terrell and Roger Penrose (Nobel laureate in 2020) independently concluded that fast-moving objects should appear rotated. However, this effect has never been demonstrated.

Fast-moving objects don’t always look the way you’d expect. When something travels near the speed of light, strange things ...

Albert Einstein is arguably the most influential scientist of the 20th century. His general theory of relativity changed our understanding of space and time, becoming one of the two pillars of ...

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

Over four months, March through June 1905, Albert ... Einstein experienced what he would later call “the most fortunate thought of my life.” He knew that his 1905 special relativity theory ...

In the quest toward finding the correct theory of quantum gravity, physicists have been testing the holographic principle which, they say, is a key property of any valid theory of quantum gravity.

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

A unified theory of everything has long eluded scientists due to gravity being irreconcilable with the three other ...

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 ...

this novel theory could also finally unite Albert Einstein's general relativity with the quantum realm. Since the beginning of the 20th century, Einstein's theory of general relativity has been ...