The Largest 'Black Hole Jet' Discovered Is Estimated to Be Twice the Size of Our Milky Way We know black holes to be ...

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 ...

Researchers believe they have rediscovered a mysterious star system first spotted in 2011. If true, the alien sun and its ...

Astronomers have discovered what they are calling the largest-known structure in the universe. Named "Quipu" after an Incan ...

Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is ...

The Hubble Space Telescope’s latest stunning images have allowed scientists to solve the mystery of the Bullseye Galaxy’s ...

The Bullseye is now confirmed to have nine rings, eight of which are visible to Hubble. Researchers confirmed the existence ...

New research from the SAGA Survey, comparing the Milky Way with 101 similar galaxies, unveils how our galaxy differs ...

The Bullseye galaxy earned its nickname thanks to its wild number of rings. A smaller galaxy shot through its heart 50 ...

In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...