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The Andromeda Galaxy Has Swallowed Up Multiple Dwarf Galaxies, Study Finds

Posted: October 3rd, 2019, 12:35 pm
by fred8615
The Milky Way and Andromeda galaxies are the big fish in our corner of the universe, surrounded by dozens of smaller dwarf galaxies. Together, this cosmic community makes up what scientists call the “Local Group.”

Astronomers believe that the largest galaxies grow by attracting and consuming these smaller galaxies in a cosmic food web of sorts. For example, there are hints that the Andromeda galaxy ate a dwarf galaxy in our neighborhood a couple billion years ago.

But now researchers have found evidence that Andromeda actually had at least two major galactic feasts billions of years apart. The finding complicates Andromeda’s past, leaving astronomers searching for clues to its galaxy-gobbling growth.

Read more: ... udy-finds/