Link to How the universe works: 3- Alien galaxies documentary
Documentary Description
Galaxies, home to stars, planets and us, come in all shapes and sizes.
From majestic spirals to giant balls of stars and gas, these immense
cities of stars are the building blocks of the Universe itself. How the
Universe Works witnesses the evolution of galaxies; from clouds of cold
gas 13 billion years ago, to the magnificent spirals that fill our night
sky. Super-massive black holes, dark, giant monsters lurking in the
heart of galaxies, and mysterious dark matter, the glue that holds
galaxies together. Filaments of gas, link galaxies up in a colossal
cosmic web to form the largest structure in the Universe and protects
them from an even more enigmatic force…dark energy, that threatens to
rip the universe apart.
