Astronomers have shown how gravitational lensing allows us to see the faintest and most distant galaxies, helping us to understand the origin of the Universe. The first gravitational lens, a ...

Gravitational lensing is an effect on light from a background source that arises as a result of the curvature of spacetime, the three dimensions of space and time united into a single entity, caused ...

“It’s no more complicated than your iPhone,” says Ian Burns, who builds mechanical art with inexpensive household electronics. “A lot of engineers are frustrated artists,” says Australian artist Ian ...