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

Composite color image of the interacting galaxy cluster El Gordo, showing X-ray light from NASA's Chandra X-ray Observatory in blue, optical data from the European Southern Observatory's Very Large ...

Science popularizer Angel Molina, an expert in astronomy and astrophotography, explained on his TikTok channel what a ...

WASHINGTON (Reuters) - Astronomers have detected the early stages of a colossal cosmic collision, observing a pile-up of 14 galaxies 90 percent of the way across the observable universe in a discovery ...

A collision of two massive clusters of galaxies when the Universe was half its current age should not have happened according to the standard theory of cosmology, says a new study by an international ...