New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole.
Researchers say they've discovered the largest known object in the universe, a galactic superstructure called Quipu.
The "dark universe detective" space telescope Euclid has discovered its first Einstein ring in the process, learning about ...
(THE CONVERSATION) If you want to know what happened in the earliest years of the universe, you are going to need a very big, very specialized telescope. Much to the joy of astronomers and space fans ...
A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that ...
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...
It is not surprising that there are regions that are more densely populated by galaxies, and regions that are less populated.
"Interestingly, the quasar powering this massive radio jet does not have an extreme black hole mass compared to other quasars ...
"For the first time, we could trace the boundary between the gas residing in galaxies and the material contained within the ...