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MCQIntermediateCosmology & Galaxies
IAAC — 2025 Final Round
Question 29
What is the currently expected timescale for a possible Milky Way-Andromeda merger?
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Source
Source: International Astronomy and Astrophysics Competition (IAAC), Final Round 2025. Question wording and answer-choice text are transcribed from the official training PDF; the explanation and metadata are original.