In a landmark achievement, astronomers have noticed light bending in an unexpected manner, one that doesn’t align with the predictions made by Albert Einstein’s theory of general relativity. This ...

Einstein’s theory of special relativity tells us that for a moving object, time passes more slowly than for a stationary ...

Ten years ago, scientists heard the universe rumble for the first time. That first discovery of gravitational waves proved a ...

Asking what existed before the Big Bang is often dismissed as meaningless, since traditional physics breaks down when pushed ...

Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

The universe rarely fails to amaze. One of its latest surprises—nicknamed the “Einstein zig-zag”—reveals a stunning arrangement of galaxies and a distant quasar. Together, they produce a ...

To understand gravity, Einstein had to rethink space and time as a single connected fabric. He showed that mass bends this fabric, guiding how everything moves. NOVA is available to stream on ...