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Cosmology (THE UNIVERSE) Part 1 Encore with Katie Mack
Ologies with Alie Ward
Gravitational Microlensing and Supermassive Black Holes
Studying the composition of galaxies involves using gravitational microlensing, which analyzes how light bends around a galaxy due to a bright source behind it. This phenomenon can reveal details about the galaxy's composition and movement. Supermassive black holes, billions of times more massive than the sun, can create incredibly bright light by pulling matter into themselves, forming a whirlpool of illuminated material visible across the universe.
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