Cosmic collision with ‘Sausage’ galaxy reshaped Milky Way

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By: PTI | London |
Published: July 8, 2018 8:55:25 pm


Astronomers have discovered an ancient cosmic collision with an object, dubbed the “Sausage” galaxy, that reshaped the structure of the Milky Way galaxy. (Image Source: University of Cambridge)

Astronomers have discovered an ancient cosmic collision with an object, dubbed the “Sausage” galaxy, that reshaped the structure of the Milky Way galaxy. The crash was a defining event in the early history of the Milky Way and helped fashion both its inner bulge and its outer halo, according to a series of studies published in the Monthly Notices of the Royal Astronomical Society and The Astrophysical Journal Letters.

Scientists propose that around 8 billion to 10 billion years ago, an unknown dwarf galaxy smashed into our own Milky Way. The dwarf did not survive the impact: It quickly fell apart,…

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