The Day Andromeda Hits the Milky Way: What Happens to Us? | Sleep to Science

Описание: A galaxy collision sounds like instant destruction—until you learn it’s a billion-year slow-motion dance where even two star-filled galaxies can pass through each other without a single star-to-star crash.

Tonight, we’ll trace how these encounters really work: the invisible gravity that pulls galaxies together, the long multi-act “romance” of approach and re-approach, and the dramatic changes collisions trigger—new stars, stretched tidal ribbons, and even merging black holes—explained in a clear, easy-to-follow way. We’ll break it down so it makes sense on the first listen, including the future meeting between the Milky Way and Andromeda.

Chapters:
1. The shocking scale—and the “no stars collide” paradox
2. Dark matter: the invisible choreographer of the dance
3. The 5-act timeline of a galaxy merger
4. What collisions create: starbursts, tidal tails, and reshaped galaxies
5. The Milky Way vs Andromeda: our future encounter
6. Real collision scenes across the universe
7. Strange “artwork” galaxies born from impacts
8. Why collisions shaped cosmic history—and what ends them

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Image credit: NASA (publicly available media)
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