Before Einstein, special relativity, and E = mc2, what was the prevailing theory on the Sun's seemingly eternal energy?

As the daytime sky darkened, stars would become visible, and if indeed the sun’s gravity pulled on the ... Thomson, called Einstein’s theory, in a quote that raced around the world, “one ...

During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String ...

Researchers say they may have achieved Einstein's vision of a "unified field theory" that can unite two of nature's ...

Gravity pulls us to earth, a lesson you learn viscerally the first time you fall. Isaac Newton described gravity as a ...

Einstein believed that black holes didn't really exist. But they do: that much we know. We don't know much else about them.

A new theory links gravity to quantum entropy and introduces the G-field, possibly explaining dark matter and cosmic ...

Using the mathematics of Einstein's 1915 theory of gravity, called general relativity, scientists can model the interior of a black hole. The problem is that, when they do this, general relativity ...

Einstein's theory of relativity ... like black holes or the bending of light by gravity, there are several ways in which this groundbreaking theory influences technologies and processes in ...

April 18 marks the death anniversary of Albert Einstein, the iconic physicist who forever transformed the way we understand the universe. Even decades after his passing in 1955, Einstein’s ...