Gravitational Lensing

Gravitational lensing is a phenomenon where the light from distant galaxies and stars is bent and distorted by the gravitational field of massive objects, such as galaxies and galaxy clusters. This effect, predicted by Einstein's theory of general relativity, has become a valuable tool for astronomers and cosmologists to study the distribution of mass in the universe, detect dark matter, and even observe distant objects that would otherwise be invisible, making it a significant area of research in modern astrophysics and cosmology.