Astronomers know that mergers play a huge role in galaxy growth. Right now, the Milky Way is slowly consuming the Large and ...

Looking for a sky event this week? Check out our full Sky This Week column. November 22: Titan transits Saturn Andromeda the ...

Our Milky Way galaxy is a cannibal. You might wonder what would happen if our disk-shaped spiral galaxy were to one day collide with Andromeda, which is over twice the size of the Milky Way.

A century ago, a star in Andromeda named V1 launched a revolution in astronomy, revealing its true immensity and the origin ...

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 ...

China's Wide Field Survey Telescope has captured an amazing view of the Andromeda Galaxy (M31). Credit: Space.com | footage ...

A close-up view of a prodigious number of stars in the Andromeda galaxy. Credit: NASA / ESA / B. Williams (U. of Washington) The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 ...

The Andromeda Galaxy is revealed in unprecedented detail in four archive observations from the NASA/ESA Hubble Space Telescope. They show stars and structure in the galaxy’s disk, the halo of stars ...

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 ...

This time of year, you have the best chance to see the farthest thing away that you can see with the unaided human eye in our Rochester night sky. Away from heavy city lighting, look in the ...