Universe, Galaxy Cluster

New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole.
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 ...
Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is ...
Researchers say they've discovered the largest known object in the universe, a galactic superstructure called Quipu.
A new study published in the Journal of Cosmology and Astroparticle Physics (JCAP) presents a methodology to test the ...
The structure is nearly 600 million light-years from Earth and is an early display of the nascent dark matter telescope's ...
Meet cosmic characters like Sprout, Luna, Sunny, and more as they compete in the Galaxy Games.
Astronomers spent a decade compiling this special image with the Hubble Space Telescope and then stitched together 600 photos to showcase over 200 million stars.
Astronomers have hailed the incredible discovery of an Einstein ring, a phenomenon that occurs when the light from a distant ...