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

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

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 ...

Visual observers and astrophotographers alike can find something amazing to observe along the plane of our galaxy.

The Andromeda Galaxy is a time capsule of the early universe, containing stars and other celestial objects that date back to the dawn of time. On a clear, dark ... with the Milky Way, resulting ...

Observations show Andromeda has a more active star formation history than the Milky Way ... galaxy M32, that may be the residual core of a galaxy that once collided with Andromeda E - Dark ...

"It's easy to romanticize Hubble and his discovery of the universe beyond the Milky Way galaxy, but his work really stood on the shoulders of a number of people," said Jeff Rich, an astronomer at ...

But only one galaxy stands out as the most important nearby stellar island to our Milky Way—the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked eye on a very clear ...

But only one galaxy stands out as the most important nearby stellar island to our Milky Way -- the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked eye on a very clear ...