"It looks like it has been through some kind of event that caused it to form a lot of stars and then just shut down” ...

The magnificent Andromeda galaxy (Messier 31), stands out as the most important nearby stellar island to our Milky Way, and can be seen with the naked eye on a clear autumn night as “a faint ...

The materials that make up your body are intergalactic voyagers that have existed beyond the limits of the Milky Way. New research ... medium as a giant train station: It is constantly pushing ...

This implies it has a more active recent star-formation and interaction history than the Milky Way. "Andromeda's a train wreck. It looks like it has been through some kind of event that caused it ...

which implies it has a more active recent star-formation and interaction history than the Milky Way. “Andromeda’s a train wreck. It looks like it has been through some kind of event that ...

These atoms eventually fall back into their original galaxy, including the Milky Way, and get turned into ... "Think of the circumgalactic medium as a giant train station: It is constantly pushing ...