Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

For decades, physicists have faced one of science’s greatest puzzles: merging quantum mechanics, which describes tiny ...

At cosmological scales, Albert Einstein’s theory of general relativity has given scientists an immensely accurate blueprint ...

Records from Albert Einstein's final years are being published as a book around 20 years after their discovery, as ...

In this video, we break down the theory of general relativity, revealing how mass and energy bend the fabric of space and time. Discover how this groundbreaking theory explains everything from the way ...

A new theory promises to simplify our approach to the universe's earliest moments, but some cosmologists say further ...

The general theory of relativity, Einstein asserted, was now complete. The month leading up to the historic announcement had been the most intellectually intense and anxiety-ridden span of his life.

The Theory of General Relativity, Einstein's description of gravity, explained the motions of everything we see in the universe. One of Einstein's key insights is that matter warps space and time, ...

Time Dilation. The latest test of Einstein's theory of relativity, published in September 2010 in Science, looks specifically at time dilation, a piece of the theory that predicts that two ...

A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have formed ...

Amazing video: solar eclipse from 37,000 feet 02:44. But to test Einstein's theory, astronomers would have to study the positions of background stars close to the sun's edge (it's limb). As the ...