The image captures HE0435-1223, one of the best lensed quasars, with four bright images formed by a foreground galaxy. This gravitational lensing effect creates a stunning celestial arrangement. The ...

The James Webb Space Telescope was late to launch, but the observatory is making up for lost time. After several years of ...

A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope.