When galaxies collide
Chapter 1
The cosmic roadmap
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Chapter 2
The physics of a smash-up
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Chapter 3
The birth of Milkomeda
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Chapter 4
Collisions across the cosmic web
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YOUR GOAL
Master of When galaxies collide
Ch 4 · Collisions across the cosmic web
Fun Fact
Dark matter dominance: Dark matter makes up about 85% of all matter in the universe, driving the gravity of galactic collisions.
Glossary
cosmic web (noun)
The large-scale structure of the universe, consisting of interconnected filaments of gas and dark matter. The Milky Way and Andromeda travel along these filaments toward a massive merger in four billion years.
The large-scale structure of the universe, consisting of interconnected filaments of gas and dark matter. The Milky Way and Andromeda travel along these filaments toward a massive merger in four billion years.
Quiz
What is the astronomical term for a large galaxy absorbing a much smaller satellite galaxy?
Quiz
What is the name of the enormous cosmic structure of gas and dark matter that connects all galaxies?