Researchers say they've discovered the largest known object in the universe, a galactic superstructure called Quipu.

"These two supernova remnants are helping us to better understand the dynamics of our home galaxy’s neighborhood," ...

A giant galaxy called LEDA 1313424, dubbed the “Bullseye,” which has nine rings filled with stars has been discovered by the ...

Einstein rings help scientists study dark matter and cosmic expansion. Euclid will find thousands more lenses to map the ...