Astronomers have spied a monster radio jet in the distant universe that's twice the width of the Milky Way galaxy. The ...

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

Astronomers may have found a star racing through our galaxy at an incredible speed—dragging a planet along with it! If ...

Giant radio galaxies (GRGs) are massive, with plasma jets powered by supermassive black holes at their centers, stretching ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

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 ...

A research team may have discovered a star with an exoplanet that is so fast that both will leave the Milky Way.

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

The Andromeda galaxy is approximately 2.5 million light-years away from the Milky Way. The observations recorded by Hubble yield new clues about the history of Andromeda, which looks markedly ...

"It's easy to romanticize Hubble and his discovery of the universe beyond the Milky Way galaxy, but his work really ... gradually coalesced in time with new discoveries. The two people whose ...