Scientists call 1905 Albert Einstein's annus mirabilis — his year of miracles. Within a few months, Einstein wrote a series of papers that would transform the way we see the universe.

Almost as soon as Einstein completed his 1905 paper introducing the special theory of relativity, he found his ideas taking on a life of their own. That paper spelled out how an observer’s motion ...

When Einstein studied Maxwell’s theory of light, he found something that others missed—that the speed of light always appears the same, no matter how quickly you move. Einstein then boldly formulated ...

Quantum mechanics and general relativity, developed by Albert Einstein in the early 20th century, have both stood the test of time and have been proven accurate in their respective domains.

In sum, Einstein is famous for his distaste for modern quantum theory, largely because its probabilistic nature forbids a complete description of cause and effect.

A groundbreaking quantum experiment conducted by MIT physicists has turned a major page in the long-standing debate between Albert Einstein and Niels Bohr. Their recent work, published in Physical ...

Even Albert Einstein can be wrong. In his special theory of relativity, particles can't travel faster than the speed of light. In quantum entanglement, however, particles are observed to do so.

Einstein wasn't the biggest cheerleader for quantum theory. In fact, he argued back and forth with physicist Niels Bohr over certain occurrences that he believed violated fundamental laws of physics.

1915 Albert Einstein had described the special theory of relativity in 1905. The result of Einstein's thinking about light, this theory introduced brand-new ideas to science.