But what if this doomed encounter isnt inevitable and each galaxy will remain intact?
The paper is currently undergoing peer review.
From there, scientists claimed they could predict with certainty the head-on encounter scheduled in about 4 billion years.
An illustration of the predicted merger between the Milky Way and Andromeda.NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas; and A. Mellinger
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