The Milky Way’s future is tied to Andromeda, the massive galaxy slowly moving toward us. Over billions of years, the ...

Hubble’s portrait of Andromeda revealed hundreds of millions of stars, ancient collisions, and hidden streams of galactic ...

Route 66 in Arizona has a clear favorite among The Arizona Republic readers. Why this landmark keeps drawing crowds after ...

The Andromeda Galaxy, shown here with two of its satellite or companion galaxies, is one of few objects in the night sky visible with the unaided eye that's outside our own Milky Way Galaxy. And I do ...

The northern sky’s greatest galaxy gets its familiar name from the northern constellation where it resides, Andromeda the Princess. This star system is our nearest large spiral galaxy, and it sits at ...

Astronomers know that mergers play a huge role in galaxy growth. Right now, the Milky Way is slowly consuming the Large and Small Magellanic Clouds. The evidence is a stream of gas called the ...

A galaxy 2.5 million light-years away can be seen in Massachusetts. The best times to see the Andromeda Galaxy might be in late September and early October. This is when the Andromeda galaxy can be ...

As the sun sets, the Summer Triangle is straight overhead. To the north, the Big Dipper dominates as always, its cup sitting nearly parallel to the horizon late in the evening. Malan is astronomy ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...

Andromeda lies 2.5 million light-years away from the Milky Way, a spiral galaxy similar to our own that has allowed scientists to better understand our galactic home. A new composite image reveals our ...