Did you know that gravity bends light? In 1916, Albert Einstein published his general theory of relativity. And British astronomer Sir Arthur Stanley Eddington proved the truth of Einstein’s work with ...

The bright light at the centre of this image is galaxy cluster Abell S1063, which lies 4.5 billion light years from Earth. Photographed by the James Webb Space Telescope, this cluster is so massive ...

If you studied advanced physics at high school, there's a good chance that you remember Snell's law, which states how a ray of light bends when it crosses a boundary between two media. According to ...

When you shine a flashlight into a glass of water, the beam bends. That simple observation, familiar since ancient times, hides one of the oldest puzzles in physics: what really happens to the ...