What is the approximate time frame predicted for the merger event between the Milky Way and the Andromeda Galaxy?

Answer

Roughly 4.5 billion years.

Astrophysical projections indicate that the collision and subsequent merger of the Milky Way and Andromeda into a single elliptical galaxy will occur in about 4.5 billion years.

What is the approximate time frame predicted for the merger event between the Milky Way and the Andromeda Galaxy?

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